RKI Instruments GD-K11D User Manual
Model GD-K11D
Operator’s Manual
Part Number: 71-0029RK
Edition: First
Released: August 1997
RKI Instruments, Inc. • 1855 Whipple Rd. • Hayward, CA 94544 • (510) 441-5656
.
Warranty
RKI Instruments, Inc., warranties gas alarm equipment manufactured by RKI and sold by
RKI to be free from defects in materials and workmanship for a period of one year from
date of shipment from RKI Instruments, Inc. Any parts found defective within that period
will be repaired or replaced, at our option, fr ee of char ge. This warranty does not apply to
items that are subject to deterioration or consumption in normal service, and which must
be cleaned, repaired, or replaced routinely. Those items include, but are not limited to:
absorbent cartridges sensors
pump diaphragms and valves filter elements
lamp bulbs and fuses batteries
This warranty is voided by mechanical damage, misuse, alteration, rough handling, or
repairs not in accordance with the operator’s manual. This warranty indicates the full
extent of our liability. We ar e not responsible for r emoval or r eplacement costs, local repair
costs, transportation costs, or contingent expenses incurred without our prior approval.
T
HIS
WARRANTY
EXPRESSED
I
NSTRUMENTS
MERCHANTABILITY
I
NSTRUMENTS
DAMAGE
PRODUCTS
OF
OR
IMPLIED
, I
, I
ANY
TO
FUNCTION
IS
IN
NC
.,
INCLUDING
OR
NC
.,
BE
KIND
LIEU
OF
ANY
,
AND
ALL
FITNESS
CONNECTED
LIABLE
OR
OPERATE
FOR
FOR
OTHER
OTHER
BUT
A
INDIRECT
WITH
NOT
WARRANTIES
OBLIGATIONS
LIMITED
PARTICULAR
,
INCIDENTAL
THE
USE
PROPERLY
OR
TO
THE
PURPOSE
OF
ITS
AND
REPRESENTATIONS
LIABILITIES
WARRANTY
. I
N
NO
EVENT
,
OR
CONSEQUENTIAL
PRODUCTS
OR
ON
OF
THE
PART
SHALL
FAILURE
,
RKI
LOSS
OF
OF
ITS
RKI
OR
This warranty covers instruments and parts sold to end users by authorized distributors,
dealers, and representatives of RKI Instruments, Inc.
We do not assume indemnification for any accident or damage caused by the operation of
this gas monitor. Our warranty is limited to replacement of parts or our complete goods.
ii • Warranty Model GD-K11D Operator’s Manual
Table of Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Measuring Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Maintenance Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Flow System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Detection System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Mounting the Model GD-K11D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Connecting the Sample Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Wiring the Model GD-K11D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Introducing Incoming Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Setting the Zero Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Displaying the Peak Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Adjusting the Alarm Point. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Adjusting the Alarm Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Adjusting the Alarm Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Alarm Indications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Responding to Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Replacing Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Preparing for Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Setting the Zero Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Setting the Response (Span) Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Returning to Normal Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Model GD-K11D Operator’s Manual Table of Contents • iii
iv Model GD-K11D Operator’s Manual
Overview
The Model GD-K11D sample-draw transmitter is a single-point, fixed-instrument. It
continuously monitors for the target gas and alerts you to increasing gas levels with visual
alarms. Alarm contacts allow you to connect external alarms. The Model GD-K11D
includes a trouble alarm that alerts you to failure in the flow system and detection circuit.
The Model GD-K11D operates in two modes: measuring mode and maintenance mode.
Measuring Mode
Measuring mode is the mode in which the Model GD-K11D detects, measures, and
displays the target gas (normal operation).
Maintenance Mode
Maintenance mode allows you to perform maintenance tasks. These tasks include:
• adjusting the zero setting (see page 11)
• adjusting the K number when you replace a sensor (see page 18)
CAUTION: Maintenance mode includes five menus. Only menus 3 and 4 are for customer use.
To place the Model GD-K11D in maintenance mode, press the MODE button for
approximately 3 seconds. The SKIP light flashes until you exit maintenance mode.
Specifications
Table 1 lists specifications for the Model GD-K11D.
Power Source 115 VAC
Target Gas Various (see Table 2)
Area Classification Indoor, non-hazardous locations
Menus 1, 2, and 5 are for factory use only. The Model GD-K11D does not operate as
a gas detection device when you are in maintenance mode.
Table 1: Specifications
Sampling Method Sample-draw
Signal Output 4 to 20 mA
Response Time 90% in 60 seconds
Accuracy
Flow Rate (to sensor)
Model GD-K11D Operator’s Manual Overview • 1
±
5% of full scale
Approximately 0.5 liters/minute
Table 2 lists the gases that the Model GD-K11D is capable of detecting. T able 2 also lists the
detection range, alarm point, and fail point for each target gas.
NOTE: Your Model GD-K11D is calibrated to only one of the gases listed below. A label
on the front of the instrument indicates the target gas of your Model GD-K11D.
Table 2: Model GD-K11D Target Gases, Detection Ranges, and Alarm Points
Target Gas Detection Range Alarm Point
Ammonia (NH
Arsine (AsH
)0 to 75.0 ppm 25.0 ppm
3
)0 to 1.00 ppm 0.30 ppm
3
Carbon monoxide (CO) 0 to 150 ppm 50 ppm
Chlorine (Cl
Chlorine trifluoride (ClF
)0 to 3.00 ppm 1.00 ppm
2
)0 to 1.00 ppm 0.30 ppm
3
Dichlorosilane (DCS) 0 to 15.0 ppm 5.0 ppm
Fluorine (F
)0 to 3.00 ppm 1.00 ppm
2
Hydrogen bromide (HBr) 0 to 9.00 ppm 3.00 ppm
Hydrogen chloride (HCl) 0 to 15.0 ppm 5.0 ppm
Phosphine (PH
Silane (SiH
Tungston hexafluoride (WF
)0 to 1.00 ppm 0.30 ppm
3
)0 to 15.0 ppm 5.0 ppm
4
)0 to 9.00 ppm 3.00 ppm
6
2 • Specifications Model GD-K11D Operator’s Manual
Description
Status lights
Low flow
light
Display screen
Program
buttons
Potentiometers
INT switch
Fuses
This section describes the components of the Model GD-K11D. The Model GD-K11D
consists of the housing, electrical system, flow system, and detection system.
AL ZERO SPAN SKIP
PW/TR
(PEAK)
MODE
GAIN ZERO SPAN
(ALP)
Flowmeter
SET
Flow sensor
Battery
Sensor
Power switch
Terminal strip
E
Flow adjust
valve
Pump
Figure 1: Model GD-K11D Component Location
Housing
The Model GD-K11D’s steel housing is radio frequency (RF)-resistant. It is suitable for
installation in indoor areas where general purpose equipment is in use.
The housing cover is hinged on the front bottom edge and is secured by a thumbscrew on
the top of the housing. The flowmeter , display screen, and status lights ar e visible thr ough
windows in the housing cover. The cover also includes two labels that indicate the target
gas and detection range of the Model GD-K11D.
Three 3/8 in. cable fittings on the bottom of the housing allow you to make external
wiring connections. The gas out fitting to the right of the cable fittings allows the gas
sample to exit the Model GD-K11D after the sample passes through the sample system.
The gas in fitting above and to the right of the gas out fitting allows the gas sample to
enter the Model GD-K11D. The gas in and gas out fittings accept 6 mm OD x 4 mm ID
PTFE tubing.
Two mounting flanges are attached to the back of the housing. The top flange includes
two mounting slots; the bottom flange includes two mounting holes. The flanges allow
you to install the Model GD-K11D to a vertical surface at the monitoring site.
Model GD-K11D Operator’s Manual Description • 3
Electrical System
The Model GD-K11D’s electrical system consists of the terminal strip, power switch, and
fuses (see Figure 1.)
Terminal strip
The terminal strip allows you make external wiring connections to the Model GD-K11D.
The nine-point terminal strip is divided into two rows. The upper (five-point) terminal
strip is for connection to a recorder or a controlling device, which accepts a 4 to 20 mA
signal. The lower (four-point) terminal strip is for connection to incoming power and
external alarms.
NOTE: See the “Installation” section on page 8 for all wiring procedures.
Power switch
The power switch turns power to the Model GD-K11D on and off. The power switch is
ON when the toggle switch is in the UP position.
Fuses
Two extractor-type fuses protect the AC line circuitry from short circuit or overload. The
fuses are rated at 1 amp.
Flow System
The Model GD-K11D’s flow system consists of the pump, flowmeter, flow adjust valve,
flow sensor, low flow light, gas in fitting, and gas out fitting (see Figure 1). The gas in and
gas out fittings were described earlier.
Pump
The pump pulls the test sample into the Model GD-K11D.
Flowmeter
The flowmeter measures the flow rate to the sensor. A ball in the flowmeter column
indicates the flow rate. Two horizontal lines on the flowmeter mark the acceptable flow
rate. Use the flow adjust valve to keep the flowmeter ball between the two lines.
Flow adjust valve
The flow adjust valve allows you to adjust the flow rate to the sensor.
Flow sensor
The flow sensor activates the low flow alarm if the flowmeter ball drops below the visible
part of the flowmeter.
Low flow light
The low flow light is near the top left corner of the main circuit board. The low flow light
is directly above the 50-pin connector. The main circuit board is behind the amplifier
circuit board. The low flow light turns on if the flowmeter ball drops below the visible part
of the flowmeter.
4 • Description Model GD-K11D Operator’s Manual
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