Omega Products HH506R Installation Manual

OMEGA

HH506R

Digital Thermometer

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INTRODUCTION

This instrument is a 4½ digit, compact-sized portable digital thermometer
designed to use external K/J/T/E/R/S/N-type thermocouples as temperature
sensor. Temperature indication follows Reference Temperature/Voltage Tables
(N.I.S.T. Monograph 175 Revised to ITS-90) for K/J/T/E/R/S/N-type thermo­couples. Two K-type thermocouple are supplied with the thermometer.

SAFETY INFORMATION

It is recommended that you read the safety and operation instructions before
using the thermometer.

WARNING

To avoid electrical shock, do not use this instrument when working

voltages at the measurement surface over 24V AC or DC.

WARNING

To avoid damage or burns, do not make temperature

measurement in microwave ovens.

CAUTION

Repeated sharp flexing can break the thermocouple leads. To prolong

lead life, avoid sharp bends in the leads, especially near the connector.
The symbol on the instrument indicates that the operator must refer to an

explanation in this manual.

1

SPECIFICATIONS

ELECTRICAL

Temperature Scale: Celsius or Fahrenheit user-selectable
Measurement Range:

Thermocouple Range
K-TYPE -200°C to 1372°C, -328°F to 2501°F
J-TYPE -210°C to 1050°C, -346°F to 1922°F
T-TYPE -200°C to 400°C, -328°F to 752°F
E-TYPE -210°C to 790°C, -346°F to 1454°F
R-TYPE 0°C to 1767°C, 32°F to 3212°F
S-TYPE 0°C to 1767°C, 32°F to 3212°F
N-TYPE -50°C to 1300°C, -58°F to 2372°F

Resolution:
K-TYPE 0.1°C, 0.1°F (0°F to 700°F)

0.2°F on other range

J-TYPE 0.1°C, 0.1°F (0°F to 500°F)

0.2°F on other range

T-TYPE 0.1°C, 0.1°F (0°F to 600°F)

0.2°F on other range

E-TYPE 0.1°C, 0.1°F (0°F to 450°F)

0.2°F on other range
R-TYPE 1°C , 1°F
S-TYPE 1°C , 1°F
N-TYPE 0.1°C , 0.2°F

2

Accuracy: Accuracy is specified for operating temperatures over the range of

18°C to 28°C (64°F to 82°F), for 1 year, not including thermocouple error.

K/J/T/E-TYPE ±(0.05% rdg + 0.3°C) -50°C to 1370°C

±(0.05% rdg + 0.7°C) -50°C to -210°C
±(0.05% rdg + 0.6°F) -58°F to 2498°F
±(0.05% rdg + 1.4°F) -58°F to -346°F

N-TYPE ±(0.05% rdg + 0.7°C) -50°C to 0°C

±(0.05% rdg + 0.3°C) 0°C to 1300°C
±(0.05% rdg + 1.4°F) -58°F to 32°F
±(0.05% rdg + 0.6°F) 32°F to 2372°F

R/S-TYPE ±(0.05% rdg + 2°C) 0°C to 1767°C

±(0.05% rdg + 4°F) 32°F to 3212°F

Temperature Coefficient: 0.1 times the applicable accuracy specification

per °C from 0°C to 18°C and 28°C to 50°C (32°F to 64°F and 82°F to 122°F).

Input Protection: 24V dc or 24V ac rms maximum input voltage on any

combination of input pins.

Maximum Differential Common Mode Voltage (Maximum Voltage be-

tween T1 and T2 during measurement): 1volt.
Reading Rate: one time per second.
Input Connector: Accepts standard miniature thermocouple connectors (flat

blades spaced 7.9mm, center to center).

3

ENVIRONMENTAL

Ambient Operating Ranges: 0°C to 50°C (32°F to 122°F) <80% R.H.
Storage Temperature: -20°C to 60°C (-4°F to 140°F) <70% R.H.

GENERAL

Display: 4½ digit liquid crystal display (LCD) with maximum reading of 9999.9.
Overload: "----.-" is display.
Battery: Standard 9V battery.
Battery Life: 100 hours typical.
Auto power off: The meter key switch inactive for more than 30 minutes,

press power key to resume operation.

Dimensions: 192mm(H) x 91mm(W) x 52.5mm(D).
Weight: 365g.

4

OPERATING INSTRUCTIONS

1

Power Switch

The key turns the thermometer on or off. In the MIN MAX record mode
can not power off, must leave MIN MAX record mode then power off.

2

°C/°F Selecting the Temperature Scale

Readings are dual displayed in either degrees Celsius(°C) or degrees
Fahrenheit(°F). When the thermometer is turned on, it is set to the
temperature scale that was in use when the thermometer was last turned
off. To change the temperature scale, press the °C/°F key.

3

HOLD Mode (only Main display)

Pressing the HOLD key to enter the Data Hold mode, the "HOLD" annun­ciator is displayed. When HOLD mode is selected, the thermometer held
the present readings and stops all further measurements.
Pressing the HOLD key again to cancel HOLD mode causing thermometer
to resume taking measurements.
In the MIN/MAX recording mode, press HOLD key to stop the recording.
Press HOLD key again to resume recording. (Previously recorded reading
are not erased).

5

T1 T2/T1-T2 Main display Input Selection

4

The input selection indicates which input is selected for main display; T1
thermocouple, T2 thermocouple or the difference between the two thermo­couples (T1-T2), when the thermometer is turned on, it is set to T1,
When main display input selected T1, then T1 input can select alternate of
thermocouple by pressing TYPE key switch.

5

K/J/T/E/R/S/N T1 Input Thermocouple Type Select (Main
display)

The TYPE key switch the T1 input circulating selects the K/J/T/E/R/S/N type
thermocouple as input, when main display input selected T1.
When the thermometer is turned on, it is set to the type selected that was
in use when the thermometer was last turned off.

6

MIN MAX with Time record Mode (only Main display)

Press MIN MAX key to enter the MIN MAX Recording mode, (displays the
Maximum reading with time, Minimum reading with time and Average
reading stored in record mode). In the this mode the automatic power-off
feature is disabled and key, °C/°F key, REL key, SET key, Hi/Lo Limits
key and main display T1 T2 T1-T2 key, TYPE key are disabled.
The beeper emits a tone when a new minimum or maximum value is
recorded.
Push MIN MAX key to cycle through the MAX, MIN and AVG readings.
If an overload is recorded, the averaging function is stopped and average
value display"----.-".

6

The true average of all the reading taken over at least 22 hours preiod can
be displayed. If 22 hours is exceeded, new averages are no longer
calculated. The last calcalated value is retained as the average reading, but
the actual minimum and maximum reading will continue to be captured.
In the this mode, press HOLD key to stop the recording of readings, all
values are frozen, press again to restart recording.
To prevent accidental loss of MIN, MAX and AVG data, in this mode can only
be cancelled by pressing and hold down the MIN MAX key for 2 seconds to
exit and erased recorded readings.

REL Relative mode (only Main display)

7

Pressing REL key to enter the Relative mode, zero the display, and store
the displayed Reading as a reference value and annunciator REL is
displayed. Press REL key again to exit the relative mode.
The relative value can also be entered by the user. (See "SET mode" later
in this manual.)
When the desired Relative value has been entered, press REL key to enter
the Relative mode, press SET key use set Relative value as a reference
value. Press REL key again to exit the relative mode.
In the Relative mode, the value (can not >±3000.0 counts) shown on the
LCD is always the difference between the stored reference and the present
reading.

7

Hi/Lo LIMITS mode (only Main display)

8

Press Hi/Lo LIMITS key to enter the Hi/Lo Limits comparative mode,
"LIMIT" is displayed. In the this mode the automatic power-off feature is
disabled and REL key, HOLD key, MAX/MIN key are disabled, when input
temperature value exceed Hi. The beeper emits a continuity pulse tone and
"Hi" is displayed, and when input temperature value exceed Lo value.The
beeper emits a discontinuous pulse tone and "Lo" is displayed. Press Hi/Lo
LIMIT key again to exit the Hi/Lo LIMIT mode.

9

SET mode (Relative value set, Time set and Hi/Lo Limits value
set and Time set)

1. Press SET key to enter Relative valuse SET mode (Press ENTER key can
escape relative valuse set mode), REL set mode. = = = =.= is displayed in
main display.Relative value is entered via overlay numbers, when you want
to get negative values push (- 0) key for end of numbers, then press overlay
ENTER key, stored the relative value, enter Hi/Lo Limits value set mode.

2. Hi Limit value set mode, (Press ENTER key can escape Hi Limit value set
mode), = = = =.= is displayed in main display, Hi Limit value is entered via
overlay numbers, when you want to get negative values push (- 0) key for
end of numbers, then press overlay ENTER key, stored the Hi Limit value,
enter Lo Limit value set mode (Press ENTER key can escape Lo Limit value
set mode), = = = =.= is displayed in main display, Lo Limit value is entered
via overlay numbers, when you want to get negative values push (- 0) key
for end of numbers, then press overlay ENTER key, stored the Lo Limit
value, enter Time set mode.

8

3. Time set mode, (Press ENTER key can escape Time set mode) = = : = =
= =is displayed in third display. Time (hours, minutes, seconds) value is
entered via overlay numbers, then press overlay ENTER key. Time start
from set time value and exit set mode.

10

T1/T2 T1-T2 second display Input Selection

The input selection indicates which input is selected for second display; T1
thermocouple, T2 thermocouple or the difference between the two thermo­couples (T1-T2), when the thermometer is turn on, it is set to T2 input can
select alternate of thermocouple by second display TYPE key switch.

11

K/J/T/E/R/S/N T2 Input Thermocouple Type Select (Second
display)

The TYPE key switch the T2 input circulating selects the K/J/T/E/R/S/N type
thermocouple as input, when second display input selected T2.
When the thermometer is turned on, it is set to the type selected that was
in use when the thermometer was last turned off.

12

" " Button

Press " " button to toggle on and off of backlight. The backlight will switch­off automatically after 60 seconds.

9

OPERATOR MAINTENANCE

WARNING

To avoid possible electrical shock, disconnect the thermocouple

connectors from the thermometer before removing the cover.

Battery Replacement

Power is supplied by a 9 volt "transistor" battery. The " " appears on the LCD
display when replacement is needed. To replace the battery, remove the two
screws from the back of the meter and lift off the battery cover. Remove the
battery from battery contacts.

10

RS-232 Operation Using Quick BASIC

The following example shows how to send command instruction and receive
data responses over the RS-232 interface using Quick BASIC.
The program example is set up on "COM1".

CLS
E$ = "A"
ST1:
CLOSE #1
OPEN "COM1:1200,E,7,1,DS,RS" FOR OUTPUT AS #1
PRINT #1, E$;
CLOSE #1
OPEN "COM1:1200,E,7,1,DS,RS" FOR RANDOM AS #1
ST2:
INPUT #1, A$
B$ = MID$(A$, 2, 6)
DEC = 0
F$ = "0123456789ABCDEF"
N = 6
FOR I = 0 TO 5
C$ = MID$(B$, N, 1)
N = N - 1
D = INSTR(F$, C$) - 1
DEC = DEC + (16 ^ I) * D
NEXT
DEC = DEC / 1000
C$ = MID$(A$, 1, 1)

11

IF C$ = "-" THEN
DEC = DEC * -1
END IF
B$ = MID$(A$, 10, 6)
DEC1 = 0
N = 6
FOR I = 0 TO 5
C$ = MID$(B$, N, 1)
N = N - 1
D = INSTR(F$, C$) - 1
DEC1 = DEC1 + (16 ^ I) * D
NEXT
DEC1 = DEC1 / 1000
C$ = MID$(A$, 9, 1)
IF C$ = "-" THEN
DEC1 = DEC1 * -1
END IF
CLS
LOCATE 12, 33
PRINT " T1 T2"
LOCATE 13, 30
PRINT USING "######.# ######.#"; DEC; DEC1
E$ = INKEY$
IF E$ = "" THEN
GOTO ST2
END IF
GOTO ST1

12

RS-232 Transmit and Receive Comammand Summary

1. Control letter should use Capital Letter.

2. If you write you own program, the host computer must send the "A" letter to
activate data transmission.

3. If you should stop data transmission the host computer must send the "B"
letter to extend battery life.

4. Communication Parameters
Baud rate: 1200
Parity check: EVEN
Data bits: 7
Stop bits: 1
"A" Activate data transmission
"B" Stop data transmission
"C" °C/°F Key
"D" HOLD Key
"E" T1/T2/T1-T2 Key (main display)
"F" TYPE Key (main display)
"G" MIN/MAX Key
"H" Exit record mode
" I " REL Key
"J" LIMITS Key
"K" T1/T2/T1-T2 Key (second display)
"L" TYPE Key (second display)
"M" " " Key
"P" Turn off power of meter

13

OUTPUT DATA FORMATS

The data format consists of 32 bytes.
byte

0000000001111111
1234567890123456
SHHHHHHASHHHHHHA

T1 present status T2 present status

S: Negative sign or positive sign
H: Hexadecimal digits
D: Numeric digits
A: Capital Letter or "-" sign
CR: Carriage return character
nl: newline character
01 T1 polarity "+" Positive
08 T2 polarity "-" Negative
02 — MSD T1 Values=[H07x160+H06x161+H05x16
07 — LSD +H04x163+H03x164+H02x165] / 1000
10 — MSD T2 Values=[H15x160+H14x161+H13x16
15 — LSD +H12x163+H11x164+H10x165] / 1000
08 — T1 Thermocouple Type "K" ® K type
16 — T2 Thermocouple Type "J" ® J type

1112222222222333
7890123456789012
DDDDDDAAAAAAAA

3 rd display reading Meter status

"T" ® T type

"E" ® E type
"R" ® R type
"S" ® S type
"N" ® N type

14

CR nl

2

2

17 — MSD
18 — LSD
19 — MSD
20 — LSD
21 — MSD
22 — LSD
23 — Record mode "R" ® Record mode

24 — REL mode "R" ® Relative mode
25 — HOLD mode "H" ® HOLD mode
26 — LIMITS mode "L" ® Limits mode
27 — Hi LIMITS "H" ® Hi Limits
28 — Lo LIMITS " L" ® Lo Limits
29 — none "-"

30 — Battery status "B" ® Low battery

Hours

Minutes

Seconds

"M" ® MAX mode
" I " ® MIN mode

"A" ® AVG mode
"-" ® normal mode

"-" ® normal mode
"-" ® normal mode
"-" ® normal mode
"-" ® normal mode
"-" ® normal mode

"-" ® normal mode

15

COMMUNICATION

4612-IR232

RS232C CABLE

506R

RS-232C "COM1" PORT

1. Install the RSR232C cable between computer "COM1" and Thermometer
RS232C port.

2. Turn on Thermometer.

3. Utilize the Quick BASIC for inputting programs.

4. Use the capital control letter and input "A" letter from the keyboard to start
sending messages to computer.

5. Input "C" letter from the keyboard and then you can change the temperature
scale.

6. Input "F" letter from the keyboards and then you can circulating select the T1
input type.

7. Input "G" letter from the keyboard and then the meter enter record mode, and
then you can push "G" again to circulate through Maximum/Minimum/Average/
Record mode.

8. When you want to stop transmission mode you should push "B" letter from the
keyboard in order to conserve battery life.

16

HH 506(R)/HH 507(R) CALIBRATION PROCEDURE

Note: The following calibration procedure should perform only by qualified technicians

who have access to the items as following.

Equipment: The class of calibrator had better 10 times greater than the measured meter.

1. Set the jumper position on J1 position.

2. Input DCV 17mV to the T1 after the display is stabilized (forward 4 digits), then
press “ HOLD “ key and "0.0" is displayed in main display.

3. Input DCV 60mV after the display is stabilized (first 4 digits), then press
“ HOLD “ key and "0.1" is displayed in main display.

4. Input 0°C (K-type) after the disp lay is stabilized (first 4 digits), then press
“ HOLD “ key and "0.2" is displayed in main display.

5. Don't push any key and the meter will turn off automatically after 20 seconds.

6. After adjustment set the jumper back to J3 position.

7. Turn on the meter then input 0°C (K-type). The display reading reads 0°C if
the calibration procedure is right.

1

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months
from date of purchase. OMEGA Warranty adds an additional one (1) month grace period to the normal one (1) year product
warranty to cover handling and shipping time. This ensures that OMEGA's customers receive maximum cov erage on each product.If
the unit should malfunction, it must be returned to the factory for evaluation. OMEGA's Customer Service Department will issue an
Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to
be defective it will be repaired or replaced at no charge. OMEGA's W ARRANTY does not apply to defects resulting from any action
of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair,
or unauthorized modification. This WARRANTY is V OID if the unit shows e vidence of having been tampered with or shows evidence
of being damaged as a result of excessive corrosion; or current, heat moisture or vibration; improper specification; misapplication;
misuse or other operating conditions outside of OMEGA's control. Components which wear are not warranted, including but not
limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However , OMEGA neither assumes responsibility
for any omissions or errors nor assumes liability for an y damages that result fr om the use of its products in accordance
with information provided by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by it
will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND
WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE AND ALL IMPLIED WARRANTIES INCLUDING ANY
WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED.
LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are exclusive and the total liability of OMEGA with
respect to this order, whether based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall
not exceed the purchase price of the component upon which liability is based. In no event shall OMEGA be liable for
consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a "Basic Component" under 10
CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical applications or used on humans. Should any
Product(s) be used in or with any nuclear installation or activity, medical application, used on humans, or misused in any way,
OMEGA assumes no responsibility as set forth in our basic WARRANTY / DISCLAIMER language, and additionally, purchaser will
indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product(s) in
such a manner.

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY
PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA'S
CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then
be marked on the outside of the return package and on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit.

FOR WARRANTY RETURNS, please have the f ollowing

information available BEFORE contacting OMEGA:

1. P.O. number under which the product was PURCHASED.

2. Model and serial number of the product under warranty, and

3. Repair instructions and/or specific problems relative to the
product.

OMEGA's policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest
in technology and engineering. OMEGA is a registered trademark of OMEGA ENGINEERING, INC. © Copyright 1999 OMEGA ENGINEERING,
INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic medium or
machine-readable from, in whole or in part, without prior written consent of OMEGA ENGINEERING, INC.

WARRANTY / DISCLAIMER

RETURN REQUESTS / INQUIRIES

FOR NON-WARRANTY REPAIRS, consult OMEGA for

current repair charges. Have the following information
available BEFORE contacting OMEGA:

1. P.O. number to cover the COST of the repair.

2. Model and serial number of product , and

3. Repair instructions and/or specific problems relative to the
product.

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