ENMET Corporation
PO Box 979
Ann Arbor, MI 48106-0979
SPECTRUM SP Series
Operation & Maintenance
Manual
Manual Part Number
80012-018
MCN-428, 12/23/09
Table of Contents
1.0 I
NTRODUCTION
1.1 Unpack ..............................................................................................................................................................1
1.1.1 Check Order ...........................................................................................................................................1
1.1.2 Serial Numbers .......................................................................................................................................1
1.2 Turn Instrument ON..........................................................................................................................................2
1.2.1 Verify ......................................................................................................................................................2
1.2.2 Acknowledge Alarm ................................................................................................................................2
1.2.3 Remove Gas ............................................................................................................................................2
1.2.4 Contact ENMET .....................................................................................................................................2
2.0 F
EATURES AND OPERATION
2.1 Operation ..........................................................................................................................................................4
2.1.1 Operational Menu ...................................................................................................................................4
2.1.2 Turn ON and OFF ..................................................................................................................................5
2.1.3 Gas Concentration Display and Alarms .................................................................................................5
2.1.4 Alarm Acknowledge ................................................................................................................................5
2.1.5 Confidence Beep .....................................................................................................................................5
2.1.6 Battery Status and Low Battery Alarms ..................................................................................................6
2.1.7 Data ........................................................................................................................................................6
2.1.8 Backlight .................................................................................................................................................6
2.2 Interference Gases.............................................................................................................................................6
3.0 M
AINTENANCE
3.1 Maintenance Menu ...........................................................................................................................................7
3.1.1 Key ..........................................................................................................................................................8
3.1.2 Zero.........................................................................................................................................................8
3.1.3 Calibration .............................................................................................................................................8
3.1.4 Changing the Alarm Level ......................................................................................................................9
3.1.5 Setting a New Key ...................................................................................................................................9
3.2 Changing Components .................................................................................................................................... 10
3.2.1 Sensor Removal and Replacement ........................................................................................................ 10
4.0 R
EPLACEMENT PARTS AND ACCESSORIES
5.0 WARRANTY.......................................................................................................................................... 13
A
PPENDIX A: CALIBRATION DATA TABLES
APPENDIX C SPECTRUM SP
.......................................................................................................................................... 1
....................................................................................................................... 2
........................................................................................................................................... 7
............................................................................................... 12
..................................................................................................... 14
FOR HYDRAZINE
........................................................................................... 16
List of Illustrations
Figure 1: SECTRUM Features ..................................................................................................................................................... 3
Figure 2: Operation Menu Diagram ............................................................................................................................................. 4
Figure 3: Maintenance Menu Flow Diagram ............................................................................................................................... 7
Figure 4: SPECTRUM SP Series Sensor Location .................................................................................................................... 10
Figure 5: SPECTRUM SP Series Battery Location ................................................................................................................... 11
Table 1: Gas Ranges, Alarm Points and Sensor Life ................................................................................................................. 14
Table 2: SPECTRUM SP Calibration Voltage and Countdown Times ..................................................................................... 15
SPECTRUM SP Series ENMET Corporation
1.0 Introduction
The SPECTRUM SP is a small portable battery operated single channel gas detection instrument featuring an internal
motorized sample pump. Depending on the sensor supplied with the instrument, it can detect one of a number of potential target
gases. An electrochemical cell detects the gas, and the gas concentration is displayed on an LCD. Audio and visual alarms
occur when the target gas concentration exceeds a preset alarm point or when air flow to the sensor is interrupted. At relatively
low concentrations of the gas, an alarm can be acknowledged, which results in the temporary cessation of the audio alarm.
Operation and maintenance procedures are managed with three pushbutton switches. Appropriate warnings are issued when
remaining battery energy is low. The instrument is shown in Figure 1.
Several sensors have been qualified for target gases, the list is found in Table 1 Appendix A.
N
OTE
: All specifications stated in this manual may change without notice.
1.1 Unpack
Unpack the SPECTRUM SP and examine it for shipping damage. If such damage is observed, notify both ENMET customer
service personnel and the commercial carrier involved immediately.
Regarding Damaged Shipments
N
OTE
: It is your responsibility to follow these instructions. If they are not followed, the carrier will not honor
any claims for damage.
This shipment was carefully inspected, verified and properly packaged at our company and delivered to the carrier in
good condition.
When it was picked up by the carrier at ENMET, it legally became your company’s property.
If your shipment arrives damaged:
• Keep the items, packing material, and carton “As Is.” Within 5 days of receipt, notify the carrier’s local office and
request immediate inspection of the carton and the contents.
• After the inspection and after you have received written acknowledgment of the damage from the carrier, contact
ENMET Customer Service for return authorization and further instructions. Have your Purchase Order and Sales
Order numbers available.
ENMET either repairs or replaces damaged equipment and invoices the carrier to the extent of the liability coverage,
usually $100.00. Repair or replacement charges above that value are your company’s responsibility.
The shipping company may offer optional insurance coverage. ENMET only insures shipments with the shipping
company when asked to do so in writing by our customer. If you need your shipments insured, please forward a written
request to ENMET Customer Service.
Regarding Shortages
If there are any shortages or questions regarding this shipment, please notify ENMET Customer Service within 5 days of
receipt at the following address:
ENMET Corporation
680 Fairfield Court
Ann Arbor, MI 48108
734-761-1270 734-761-3220 Fax
1.1.1 Check Order
Check, the contents of the shipment against the purchase order. Verify that the SPECTRUM SP is received as ordered. Each
SPECTRUM SP is labeled with its target gas. If there are accessories on the order, ascertain that they are present. Check the
contents of calibration kits. Notify ENMET customer service personnel of any discrepancy immediately.
1.1.2 Serial Numbers
Each SPECTRUM SP is serialized. These numbers are on tags on the equipment and are on record in an ENMET database.
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SPECTRUM SP Series ENMET Corporation
1.2 Turn Instrument ON
Turn the instrument ON, by pressing and holding the POWER / BACKLIGHT pushbutton for two seconds. The pump will
automatically activate. In uncontaminated air, for most instruments, the display should read 0000 within ten seconds of turnon.
N
OTE
: For instruments using a biased sensor, this time is extended to 4 minutes.
Stabilization may take as long as 1 hour. See Table 1 Appendix A.
1.2.1 Verify
The SPECTRUM SP is calibrated prior to shipment. However, if there is access to a source of the target gas, such as a
calibration kit, expose the sensor to the gas, and observe that the instrument is responsive.
1.2.2 Acknowledge Alarm
If the concentration of the target gas is greater than the alarm set point, the instrument indicates an alarm condition.
Acknowledge the alarm by pressing and releasing the right hand pushbutton, SELECT; this silences the audio alarm for four
minutes unless the concentration of the target gas is greater than the upper alarm limit. See Table 1 Appendix A for a list of
alarm set points and upper alarm limits for various target gases.
1.2.3 Remove Gas
Remove the source of the target gas. After the display reads zero or close to it, turn the instrument OFF, by pressing and
holding the POWER / BACKLIGHT pushbutton for approximately three seconds. The display flashes "OFF" and then goes
blank after the pushbutton is released.
1.2.4 Contact ENMET
If the instrument doesn't operate as described, contact ENMET customer service personnel immediately.
2.0 Features and Operation
The features of the SPECTRUM SP are shown in Figure 1.
D
ISPLAY
An LCD upon which either the gas concentration, or prompts for the operational and
maintenance menus, are given.
P
USHBUTTON SWITCHES
• P
• O
• S
OWER / BACKLIGHT
PTION
ELECT
There are three of these, as follows:
The left hand switch when the instrument is held upright with the display facing the user.
The middle switch.
The right hand switch.
These switches are used to access and utilize the operational and maintenance menus.
S
ENSOR CHAMBER
S
AMPLING PORT
A small cylindrical chamber inside the instrument.
The membrane of the electrochemical sensor is exposed to the sample air through the
hole in the right side of the instrument.
V
ISUAL INDICATOR
A Red LED which is ON whenever the target gas concentration is above the alarm point.
A Red LED which is ON whenever the sample air to the sensor is interrupted.
A Green LED which is ON whenever battery charger is connected.
A Red LED which is ON whenever a battery charger is connected
and the battery is NOT fully charged
A
UDIO ALARM
A buzzer that is ON whenever the gas concentration is above the alarm point, until the
alarm is acknowledged.
C
OVER
Front overlay contains operation information, type of gas monitored and serial number.
Retained with four screws, from bottom side.
B
ATTERY
C
HARGE JACK
B
ELT CLIP
The power source of the instrument, 4.8 VDC NiMH rechargeable.
Connects with the mating plug on the charger.
Clip to outside of clothing for hands-free operation
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SPECTRUM SP Series ENMET Corporation
Alarm
Power
Red: Battery Charging
Select
Green: Battery charger
Option
Connected or fully charged
Alarm Indicator
Belt Clip
Left Side End Cap
Right Side End Cap
P
OWER/BACKLIGHT
Switch
O
PTION
Switch
S
ELECT
Switch
LED
Sampling Port
Red LED Battery Charging
Front View
Green LED Battery Charger
View
Belt Clip
Charge Jack
View
Sampling Port
Figure 1: SECTRUM Features
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SPECTRUM SP Series ENMET Corporation
2.1 Operation
2.1.1 Operational Menu
The operation menu flow diagram is shown in Figure 2. This menu is accessed with the OPTION pushbutton switch, the
middle switch of the three. Successive displays are achieved by repeatedly pushing the switch, as indicated by "O" in the menu
flow diagram. The alarm acknowledgement function, and displays and function in the "see DATA" area, are accessed with the
SELECT pushbutton, indicated by "S" in the operation menu flow diagram.
Operational
Display
XXXX
O
Batt=OK*
O
Alm=XXXX
O
O
go Setup
O
Maintenance
Menu Key
See Figure 3
S
S
*may also be
“low” or “LOW”
S
S
Acknowledge
Alarm
No
Function
No
Function
Max=XXXX See DATA
Min=XXXX
Clr DATA
XX YY °C
O
O
O
S
S
S
S
No
Function
No
Function
Reset
Data
No
Function
O
O = Option Switch
S = Select Switch
Figure 2: Operation Menu Diagram
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SPECTRUM SP Series ENMET Corporation
2.1.2 Turn ON and OFF
Turn the instrument ON by pressing the POWER / BACKLIGHT pushbutton for two seconds. The pump will automatically
actuate. For most instruments, the display should read "0000" within ten seconds when the instrument is in uncontaminated air.
N
OTE
: Instruments using biased sensor, stabilization time is extended to 4 minutes. Complete stabilization may take as long as
1 hour. When instrument is turned on it may display XXXX + . If instrument has been off for an extended amount of
time it may be necessary to “cycle” (turn on and off) the instrument several times. See Table 1 Appendix A for
identification of biased sensors.
Turn the instrument OFF by pressing and holding the POWER / BACKLIGHT pushbutton for three seconds. The display
flashes "OFF" and then fades out after the pushbutton is released. The instrument can be turned OFF from any location in the
operational or maintenance menus.
2.1.3 Gas Concentration Display and Alarms
The LCD furnishes a numerical display of the target gas concentration from 0000 to the upper limit of the range, shown in
Table 1 Appendix A. The display of the target gas concentration is termed the "operational display". If the target gas
concentration exceeds the upper limit of the range, the display is the numerical upper limit and a plus sign, for
example,"0200+", for hydrogen sulfide. When the concentration of the target gas exceeds the alarm set point, the audio and
visual alarms are activated. The gas concentration continues to be displayed during alarm. The alarm point is adjustable
between a lower and upper alarm limit by accessing the maintenance menu; these and the factory setting of the alarm point are
also given in Table 1 Appendix A. A user should have a justifiable application-based reason for setting the alarm point higher
than the factory setting. When the target gas concentration drops below the alarm point, the audio and visual alarms cease
operation. The alarm point setting can be observed on the display by pushing the OPTION pushbutton twice.
If an alarm concentration is encountered when the display is at a location in the operational menu other than the operational
display, the audio and visual alarms are activated and the alarm cannot be acknowledged.
If the display is left idle at a location other than the operational display for 45 seconds it automatically transfers to the
operational display.
2.1.4 Alarm Acknowledge
When the instrument is in alarm, and the target gas concentration is below the upper alarm limit, the alarm can be
acknowledged by pressing and releasing the SELECT pushbutton, but only when the instrument is at the operational display.
The acknowledgement causes the temporary cessation of the audio alarm; the red LED continues to be ON. The audio alarm is
OFF for a period of four minutes, after which it is reactivated, if the gas concentration is still above the alarm point. The alarm
can again be acknowledged. However, acknowledgement of the alarm at gas concentrations above the upper alarm limit does
not result in audio alarm cessation, and if the gas concentration rises above the upper alarm limit during an alarm condition
which has been acknowledged, the audio alarm resumes operation.
The alarms are high energy users. The LED alone uses twice as much energy as the non-alarming instrument. Prolonged use of
the instrument while it is in the alarm condition causes a marked decrease in battery life.
2.1.5 Confidence Beep
During normal operation, with no alarm conditions, the audio and visual alarms are activated once every thirty seconds.
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SPECTRUM SP Series ENMET Corporation
2.1.6 Battery Status and Low Battery Alarms
The battery status display is accessed by pressing the OPTION pushbutton once. When this display is "Batt=OK", the battery
energy level is sufficient for operation of the instrument. In this condition, the confidence beep occurs every thirty seconds
when the instrument is not in alarm.
When the battery energy level is low the battery should be recharged, the battery status display reads "Batt=low", and the
instrument beeps once every five seconds to alert the user to the battery condition. Stop Using The Instrument And Exit An
Area That Could Be Hazardous To Safety Or Health. When the battery energy level is critically low, and battery failure is
imminent, the battery status display reads "Batt=LOW", and the instrument beeps once every two seconds. An alarm condition
at this point could cause the instrument to completely shut off. Recharge the battery immediately. The user cannot go past the
battery status display until the depleted battery is recharged.
When the battery energy level drops below the critically low point, the instrument automatically shuts off, and cannot be used
until the battery is recharged.
2.1.7 Data
The SPECTRUM SP retains the maximum and minimum gas concentration values encountered since turn-on, or since the data
was cleared and reset. To access this press the OPTION pushbutton three times; "see DATA" is displayed. Press the SELECT
pushbutton; the maximum concentration since turn-on or last reset is displayed. Press the OPTION pushbutton again; the
minimum concentration since turn-on or last reset is displayed. Press the OPTION pushbutton again; "clr DATA" is displayed.
Pushing the SELECT pushbutton clears the data and resets it to the current concentration.
Pushing the OPTION pushbutton once more results in a display of both the countdown to the confidence beep and the internal
temperature of the instrument in degrees centigrade. Push the OPTION pushbutton three more times to return to the
operational display.
2.1.8 Backlight
To backlight the display for observation in a dark area, press and quickly release the POWER / BACKLIGHT pushbutton. The
LCD backlight comes ON for a period of 45 seconds and then turnes OFF automatically. The backlight can be turned off
sooner than 45 seconds by pressing the POWER / BACKLIGHT pushbutton a second time. Use the backlight feature
sparingly; it is a relatively high energy user, and extensive use rapidly depletes the battery.
2.2 Interference Gases
For each target gas, some gases other than the target gas cause a sensor response, and thus are termed "interference gases". A
compilation of known interference gases for the various target gases is given in Appendix B, along with gases that are known to
not cause a sensor response.
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SPECTRUM SP Series ENMET Corporation
INVALID
run ZERO
AIR SET?
z30:0.0v
To Exit
Alk/Lith
3.0 Maintenance
3.1 Maintenance Menu
From the operational display, press the OPTION pushbutton four times; "go SETUP" is displayed. This is the entrance to the
maintenance menu. The maintenance menu flow diagram is shown in Figure 3.
To Operational
Display
go SETUP
S
Key=0000
VALID
O
From Operational Display
O
S
S
Changes digit indicated by underscore cursor
Locks underscored digit and moves cursor
S
z30:0.0v
O
VALID
INVALID
To Exit
To Operational Display
C-FAULT
INVALID
run CAL
O
set ALM
O
set BATT
O
S
S
S
AIR SET?
S
GAS=XXXX
S
GAS SET?
S
XXX:Y.Yv
ALM=0000
new=XXXX
S
O
O or S
O
O
VALID
INVALID
O
S
O or S
No Function
To Exit
To Exit
To Operational Display
C-FAULT
Changes digit indicated by underscore cursor
Locks underscored digit and moves cursor
To Exit To Exit
O
NiCad
S
Not applicable with
Spectrum SP
O
set KEY
O
Exit
S
S
KEY=0000
new=XXXX
To Operational Display
O
Changes digit indicated by underscore cursor
Locks underscored digit and moves cursor
S
O or S
To Exit
Figure 3: Maintenance Menu Flow Diagram
7
O = Option Switch
S = Select Switch
SPECTRUM SP Series ENMET Corporation
3.1.1 Key
Entrance to the maintenance menu is guarded with a four digit numerical key. The factory default setting of the key is 1270*.
When the valid numerical key is inserted, the user is allowed to enter the maintenance menu
When in the "go SETUP" location, press the SELECT pushbutton; "Key=0000" is displayed. The underscore cursor is under
the left hand digit. To insert the key, press the OPTION pushbutton to change the left hand digit, and choose the correct digit;
then press the SELECT pushbutton, which locks in the chosen left hand digit and moves the underscore cursor one space to the
right. Continue this process until the four digit key is complete. When the valid key is inserted in this manner, the display is
transferred to the "run ZERO" portion of the maintenance menu. When an invalid key is inserted, "INVALID" is briefly
displayed, and the instrument returns to the operational display.
*The process by which a different key is set is given in section 3.1.5.
3.1.2 Zero
A valid key entry sets the instrument at the "run ZERO" location, of the maintenance menu, which enables the setting of the
zero gas concentration point. This is desirable if the zero reference of the gas sensor has drifted over a period of time, indicated
by a persistent gas concentration reading in a clean environment. Note that the calibration sequence given below also includes
setting the zero point. If a full calibration is required, instead of setting just the zero point, push the OPTION button once; "run
CAL" is displayed. See section 3.1.3.
To set the zero point without performing full calibration, from the "run ZERO" location press the SELECT pushbutton; "AIR
SET?" is displayed. Be certain that the instrument is in clean air, uncontaminated by the target gas. If uncertain of the
environment, use pure compressed air from a pressurized cylinder, and flow it over the sensor at a low rate.
With the instrument in “AIR SET?”, press the SELECT pushbutton again. "z30:0.0v" is displayed; this is a counter that counts
down in seconds from 30 to 0. The validity of the new zero setting is then examined; if it is with in preset parameters, the
display is transferred to the operational display in the operation menu.
If the new zero setting is not between preset parameters, "C-FAULT" is displayed. Turn the instrument OFF, then ON again.
This re-boots the system with the most recent valid zero setting.
3.1.3 Calibration
N
OTE
: Calibration must be performed at normal room temperature (20-25°C) for optimal performance. If the instrument is
exposed to temperature extremes just prior to calibration, allow it to stabilize to room temperature. The internal
temperature of the instrument is verified by cycling through the "see DATA" menu.
In order to calibrate the instrument, it is first zeroed in a procedure similar to the one described section 3.1.2. Then the sensor is
presented with a known concentration of the target gas, in air or an inert gas such as nitrogen, called the "span gas". After an
appropriate interval, which is timed, the new span setting is examined for validity.
A valid key entry sets the instrument at the "run ZERO" location of the maintenance menu. Press the OPTION pushbutton
once to access the "run CAL" display, then press the SELECT pushbutton; "AIR SET?" is displayed. Zero the instrument as
described in paragraph 3.1.2. When the zero timer is complete, the display indicates "GAS=XXXX", where the numbers
indicate the correct span gas concentration the instrument is equipped to detect; for a CO SPECTRUM SP the span gas is 100
ppm CO, for Cl2 SPECTRUM SP the span gas is 5 ppm chlorine, and so forth. The correct span gas is given in Table 2
Appendix A for various target gases.
At the “GAS=XXXX” display:
1. Assure that the correct span gas is available.
2. Connect the calibration adapter to the cylinder.
3. Connect the quick release fitting to the sensor input.
4. Press the SELECT pushbutton; "GAS SET?" is displayed.
5. Press the SELECT pushbutton; "XXX:Y.Yv" is displayed until countdown is complete.
6. Remove span gas.
The XXX is a counter that counts down in seconds to zero from the correct starting time to provide the proper time interval for
calibration; this time interval may vary depending on your target gas. The Y.Y v indicates a sensor signal that is used during
the sensor replacement procedure. When the timer reaches zero, the new calibration and zero gas settings are examined for
validity. If the value is within preset parameters, the display is transferred to the gas operational display in the operations menu.
N
OTE
: After calibration the audio alarm is disabled up to 2.5 minutes.
If the new setting is not within preset parameters, "C-FAULT" is displayed. Turn the instrument OFF, then ON again. This reboots the system with the most recent valid zero and calibration settings. Recalibrate. If after recalibration the instrument still
displays “C-FAULT” the sensor may be expired. Replace sensor in accordance with Section 3.2.1.
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SPECTRUM SP Series ENMET Corporation
3.1.4 Changing the Alarm Level
A valid key entry sets the instrument at the "run ZERO" location of the maintenance menu. Press the OPTION pushbutton
twice to access the "set ALM" display, then press the SELECT pushbutton; ALM=0000" is displayed. This is called the alarm
update window, and the value displayed is the present alarm setpoint. The underscore cursor is under the far left digit. Press
the OPTION pushbutton to change the underscored digit; select the desired digit, and press the SELECT pushbutton to lock in
the desired digit and move the underscore cursor one position to the right. When the desired new alarm point is set
“new=XXXX” is displayed. Press either the OPTION or SELECT pushbutton to exit the alarm update window. If the new
alarm setting is valid, "exit" is displayed. Press the OPTION pushbutton to return to the operational display, or the SELECT
pushbutton to return to “run ZERO”.
For the safety of the user, there are upper and lower limits past which the alarm setting is invalid, and the instrument does not
accept them. If an invalid alarm setting is attempted, after the numerical value is inserted in the "ALM=0000" window,
pressing the OPTION or SELECT pushbutton results in a momentary display of "INVALID" after which the display returns to
the alarm update window. Exiting the alarm update window at this point results in an alarm point setting unchanged from the
value present when the procedure was begun.
Factory default alarm setpoints and alarm limits are shown in Table 1 Appendix A.
3.1.5 Setting a New Key
A valid key entry sets the instrument at the "run ZERO" location of the maintenance menu. Press the OPTION pushbutton four
times to access the "set KEY" display. Press the SELECT pushbutton once; "KEY=0000 is displayed. A new key can be set
by changing the underscored number with the OPTION pushbutton and moving the underscore cursor with the SELECT
pushbutton. After the new key is entered “new-XXXX” is displayed, press the OPTION or SELECT pushbutton to display to
“exit”, then press the OPTION pushbutton to return to “run ZERO”.
N
OTE
: Four digit key numbers should be selected carefully and recorded. Without the correct key, the maintenance menu
cannot be accessed. If a four digit key number is lost, call ENMET customer service personnel.
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SPECTRUM SP Series ENMET Corporation
Remove & Discard Clip/Spring
Sensor Circuit Board
Sensor
Sensor Chamber
3.2 Changing Components
Changing the battery, the sensor, or the display requires that the back cover of the instrument to be removed; remove the four
phillips head screws and then the back cover. See Figure 5.
3.2.1 Sensor Removal and Replacement
A sensor must be replaced when it no longer responds adequately to the target gas. This is indicated by a low gas concentration
reading when exposed to a known concentration of the target gas, and the inability to calibrate the instrument, with a "CFAULT" display after calibration. Expected sensor lifetimes in normal environments are given in Table 1 Appendix A.
After removing the cover lift the pump from it’s retaining clip, along with the enclosure end cap.
Remove the sealing tape from the sensor chamber and remove the chamber cover.
Pull out the sensor and disconnect the sensor from the sensor circuit board. See Figure 4.
C
AUTION
Circuit Board
: New sensors may come with a shorting clip or spring that must be removed for proper operation.
Remove the shorting clip (if present) from the new sensor and plug the new sensor in the sensor circuit board.
Replace the sensor chamber cover and *sealing tape. *A quality electrical tape is adequate for this.
Replace pump in retaining clip.
Allow the sensor to stabilize in the instrument with the power on for one hour before recalibrating.
Follow the procedure for calibrating the instrument as outlined in Section 3.1.3 of this manual with the following
modification.
During the application of the span gas, the counter counts down from an upper value given in Table 2 Appendix A.
When the counter gets down to 60, adjust the calibration potentiometer located next to the display on the instrument PC
board, so that the display to the right of the counter reads a little above the calibration voltage given for the target gas in
Table 2 Appendix A. As the counter continues, turn the pot so that the calibration voltage is reached when the counter
reaches 30. This is a one-time adjustment to align the sensor output with the instrument electronics. It should only be
performed upon sensor replacement. All future calibrations should follow the procedure in Section 3.1.3.
from Sensor
And Sealing Tape
Bottom View of Sensor
Calibration POT
Internal View- Cover Removed
Figure 4: SPECTRUM SP Series Sensor Location
Pump
Sensor
End Cap
Chamber Cover
End Cap
Sensor Chamber with End Cap
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SPECTRUM SP Series ENMET Corporation
Internal View
- Cover & Circuit board
Battery Pack
3.2.2 Battery Removal and Replacement
The battery is located under the circuit board.
To replace the battery:
Press on the locking tab and pull on the battery pack connector.
Remove the circuit board and then remove the battery pack.
Note that the battery pack is firmly attached to the enclosure with industrial strength adhesive tape.
Replace the battery pack and circuit board.
Reconnect battery pack connector.
Circuit Board
Sensor Chamber
Pump Connector
Pump
Battery Pack Connector
Internal View- Cover Removed
Battery Pack
THIS SIDE UP
Connector
Sensor Chamber
Pump
Removed
Figure 5: SPECTRUM SP Series Battery Location
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SPECTRUM SP Series ENMET Corporation
4.0 Replacement Parts and Accessories
ENMET part numbers for replacement parts and accessories:
Calibration Accessories:
Cylinder Adapter, 34 liters 03510-002
Cylinder Adapter, 17 liters 03510-001
Calibration Gas:
Calibration gas, chlorine 03331-005
Calibration gas, hydrogen sulfide 03314-020
Calibration gas, hydrogen cyanide 03303-010
Calibration gas, sulfur dioxide 03315-015
Calibration gas, ammonia 03318-025
Ozone generator 04055-0800
Other calibration gases are available, contact ENMET for details.
Replacement Sensors and parts:
Replacement chlorine sensor 67023-0100
Replacement hydrogen sulfide sensor 67023-0200
Replacement hydrogen cyanide sensor 67023-0300
Replacement hydrogen chloride sensor 67023-0400
Replacement sulfur dioxide sensor 67023-0500
Replacement phosgene sensor 67023-0600
Replacement hydrogen fluoride sensor 67023-0700
Replacement ozone sensor 67023-0800
Replacement carbon monoxide sensor 67016-1200
Replacement fluorine sensor 67023-1400
Replacement hydrogen sensor 67023-1500
Replacement nitrogen dioxide sensor 67023-1700
Replacement nitrous oxide sensor 67023-1750
Replacement ammonia sensor 67023-2400
Replacement hydrazine sensor 67023-2500
Replacement arsine sensor 67023-4000
Replacement silane sensor 67023-4003
Display Assembly, Spectrum SP 62022-010
Battery Pack, NiMH 67019-027
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SPECTRUM SP Series ENMET Corporation
5.0 WARRANTY
ENMET warrants new instruments to be free from defects in workmanship and material under normal use for a period of one
year from date of shipment from ENMET. The warranty covers both parts and labor excluding instrument calibration and
expendable parts such as calibration gas, filters, batteries, etc... Equipment believed to be defective should be returned to
ENMET within the warranty period (transportation prepaid) for inspection. If the evaluation by ENMET confirms that the
product is defective, it will be repaired or replaced at no charge, within the stated limitations, and returned prepaid to any
location in the United States by the most economical means, e.g. Surface UPS/FedEx Ground. If an expedient means of
transportation is requested during the warranty period, the customer is responsible for the difference between the most
economical means and the expedient mode. ENMET shall not be liable for any loss or damage caused by the improper use of
the product. The purchaser indemnifies and saves harmless the company with respect to any loss or damages that may arise
through the use by the purchaser or others of this equipment.
This warranty is expressly given in lieu of all other warranties, either expressed or implied, including that of merchantability,
and all other obligations or liabilities of ENMET which may arise in connection with this equipment. ENMET neither assumes
nor authorizes any representative or other person to assume for it any obligation or liability other than that which is set forth
herein.
N
OTE:
When returning an instrument to the factory for service:
Be sure to include paperwork.
A purchase order, return address and telephone number will assist in the expedient repair and return of your unit.
Include any specific instructions.
For warranty service, include date of purchase
If you require an estimate, please contact ENMET Corporation.
There is Return for Repair Instructions and Form on the last pages of this manual. This form can be copied or used as needed.
Manual Part Number
80012-018
Original September 2004
MCN-402, 05/30/09
MCN-428, 12/23/09
13
SPECTRUM SP Series ENMET Corporation
Appendix A: Calibration Data Tables
Table 1: Gas Ranges, Alarm Points and Sensor Life
Gas
Ammonia
Arsine
Carbon Monoxide
Chlorine
Fluorine
Hydrogen
Hydrogen Chloride x
Hydrogen Cyanide
Hydrogen Fluoride
Hydrogen Sulfide
Nitric Oxide x
Nitrogen Dioxide
Ozone
Phosgene
Phosphine
Range
0-100ppm 15ppm 50ppm 25ppm 1 year
0-0.99ppm 0.03ppm 0.10ppm 0.05ppm 1-1.5 years
0-1000ppm 5ppm 200ppm 35ppm 2-3 years
0-10ppm 0.5ppm 5.0ppm 1.0ppm 1-2 years
0-10ppm 1ppm 5ppm 1ppm 2-3 years
0-1000ppm 200ppm 750ppm 200ppm 1-2 years
0-20ppm 3.0ppm 10.0ppm 5.0ppm 1-2 years
0-20ppm 3.0ppm 10ppm 4.7ppm 2-3 years
0-10ppm 2.0ppm 6.0ppm 3.0ppm 1 year
0-200ppm 5.0ppm 25ppm 10ppm 2-3 years
0-100ppm 15ppm 50ppm 25ppm 1-2 years
0-10ppm 1.0ppm 5.0ppm 3.0ppm 1-2 years
0-0.99ppm 0.05ppm 0.2ppm 0.1ppm 1-1.5 years
0-0.99ppm 0.05ppm 0.20ppm 0.1ppm 1 years
0-0.99ppm 0.15ppm 0.30ppm 0.50ppm 1-1.5 years
Alarm
lower limit
Alarm
upper limit
Factory Alarm
Set Point
Expected Sensor
Lifetime
Silane
Sulfur Dioxide
N
OTE
: All specifications stated in this manual may change without notice.
x Biased Sensors: Instruments using biased sensor, stabilization time is extended to 4 minutes. Complete stabilization may
See Appendix C for Hydrazine
0-30ppm 3ppm 5ppm 5ppm 1-1.5 years
0-20ppm 2.0ppm 10ppm 5ppm 1-2 years
take as long as 1 hour. When instrument is turned on it may display XXXX + . If instrument has been off
for an extended amount of time it may be necessary to “cycle” (turn on and off) the instrument several times.
14
SPECTRUM SP Series ENMET Corporation
Table 2: SPECTRUM SP Calibration Voltage and Countdown Times
N
OTE
: The following are values used for production calibration. Not all gases are available for field calibration; contact
ENMET customer service personnel.
Gas Calibration Gas Calibration Voltage Countdown Time
Ammonia 25ppm 0.67 180 sec
Arsine 0.5ppm PH3 = 0.38ppm 0.10 120 sec
Carbon Monoxide 100ppm 1.70 120 sec
Chlorine 5ppm 1.40 180 sec
Fluorine 3ppm Cl2= 7.5ppm 1.80 240 sec
Hydrazine 0.3ppm 0.91 240 sec
Hydrogen 800ppm 2.20 180 sec
Hydrogen Chloride 10ppm 2.10 180 sec
Hydrogen Cyanide 10ppm 2.10 120 sec
Hydrogen Fluoride 5ppm 1.40 240 sec
Hydrogen Sulfide 20ppm 0.46 120 sec
Nitric Oxide 25ppm 0.67 90 sec
Nitrogen Dioxide 5ppm 1.30 120 sec
Oxygen 20.9%(air) 2.80 120 sec
Ozone 0.3ppm 0.75 240 sec
Phosgene 0.66ppm 0.18 240 sec
Phosphine 0.5ppm 0.13 120 sec
Silane 5ppm 0.54 120 sec
Sulfur Dioxide 10ppm 2.10 90 sec
N
OTE
: All specifications stated in this manual may change without notice.
15
SPECTRUM SP Series ENMET Corporation
APPENDIX C SPECTRUM SP for Hydrazine
SPECTRUM SP For Hydrazine
The detection of hydrazine, N2H4, is a specialized application. Generally, hydrazine gas blended in air or nitrogen in known
verified amounts is not available to use as calibration gas in the field. Also, the sensor is not responsive to any other gas which
could be used as a correlation gas. The sensor itself has a relatively short operating life, and should be replaced every six
months. Typically, the instrument is returned to the factory every six months for sensor replacement.
A sensor can be replaced in the field by using a current source to set up the instrument for the particular sensor being installed.
Each sensor has an individual sensitivity to hydrazine, expressed in nanoamps per ppm. This sensitivity is given on the sensor
label and the container in which the sensor is shipped.
A stable voltage of -5 vdc is available on pin 11 of IC4. The instrument is set up for a calibration gas of 0.3 ppm hydrazine. So
the voltage is used with a resistor sized to give the current output of the sensor when exposed to 0.3ppm hydrazine. This
resistor is typically in the 6 to 8 megohm range. The value of the resistor is calculated by:
R = 5.0/ (0.3) (S), where S is the sensitivity of the sensor
For a sensor with a sensitivity of 2250 nanoamps per ppm, for example:
R = 5.0/ (0.3) (0.000002250) = 7 400 000 ohms = 7.4 megohms
Remove the old sensor, and run through the zero portion of the calibration procedure, then stop. With the sensor still removed,
connect the resistor between pin 11 of IC4 and the sensor output, pin 3, on the circuit board. Then resume the calibration
procedure. When it is complete, remove the resistor, and install the new sensor.
For warranty purposes, the hydrazine sensor is considered an expendable item with a warranty life of six months.
16
PO Box 979
680 Fairfield Court
Ann Arbor, Michigan 48106-0979
734.761.1270 Fax 734.761.3220
Returning an Instrument for Repair
ENMET instruments may be returned to the factory or any one of our Field Service Centers for regular repair
service or calibration. The ENMET Repair Department and Field Service Centers also perform warranty
service work.
When returning an instrument to the factory or service center for service, paperwork must be included which
contains the following information:
A purchase order number or reference number.
A contact name with return address, telephone and fax numbers
Specific instructions regarding desired service or description
of the problems being encountered.
Date of original purchase and copy of packing slip or invoice
for warranty consideration.
If a price estimate is required, please note it accordingly and be
sure to include a fax number.
Providing the above information assists in the expedient repair and return of your unit.
Failure to provide this information can result in processing delays.
ENMET charges a one hour minimum billing for all approved repairs with additional time billed to the closest
tenth of an hour. All instruments sent to ENMET are subject to a minimum evaluation fee, even if returned
unrepaired. Unclaimed instruments that ENMET has received without appropriate paperwork or attempts to
advise repair costs that have been unanswered, after a period of 60 days, may be disposed of or returned
unrepaired COD with the evaluation fee.
Service centers may have different rates or terms. Be sure to contact them for this information.
Repaired instruments are returned by UPS/FedEx Ground and are not insured unless otherwise
specified. If expedited shipping methods or insurance is required, it must be stated in your paperwork.
Note: Warranty of customer installed components.
If a component is purchased and installed in the field, and fails within the warranty term, it can be
returned to ENMET and will be replaced, free of charge, per ENMET’s returned goods procedure.
If the entire instrument is returned to ENMET Corporation with the defective item installed, the item will
be replaced at no cost, but the instrument will be subject to labor charges at half of the standard rate.
Mailing Address:
Shipping Address:
Repair Return Form
ENMET Corporation
PO Box 979
Ann Arbor, Michigan 48106
Phone Number: 734.761.1270
FAX Number: 734.761.3220
Your Mailing Address:
Contact Name: __________________________ Your Phone: _______________________
Your PO/Reference Number: _______________ Your FAX: _______________________
ENMET Corporation
Attn: Repair Department
680 Fairfield Court
Ann Arbor, Michigan 48108
Your Shipping Address:
Payment Terms: K COD
(Check one) K VISA / MasterCard______________________ ________ ________
Card number Expiration Card Code
K American Express______________________ ________ ________
Card number Expiration Card Code
Name as it appears on the credit card___________________________________
Return Shipping Method:
K UPS: K Ground K 3 Day Select K Next Day Air K ND Air Saver K 2-Day Air
K UPS Account number: ________________________
K Federal Express: K Ground K Express Saver K P-1 K Standard K 2-Day Air
K FedEx Account number: ________________________
Would you like ENMET to insure the return shipment?
K No K Yes Insurance Amount: $_________________
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