Bacharach H25-IR Specifications Page 47
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H25-IR Operation
Instruction 3015-4342 41
IMPORTANT! Be sure to enter the leak rate using the same units of measure as displayed on the LEAK RATE
screen. In this example, the units of measure is g/yr. If your leak source is marked in Oz/yr, then multiply that
value by a factor of 28.35. For example: If the leak source is marked 0.9 Oz/yr, then enter a leak rate of (0.9 x
28.35=) 25.5 g/yr.
5.2.3 Leak Gas
The Leak Gas setting is set to match the gas contained in the internal leak source as indicated on the tag
attached to the leak source. Use the Up and Down buttons to highlight the correct gas, and then press ENT to
select that gas.
5.2.4 Leak Temp
The Leak Temperature value is set to match the temperature of the internal leak source at its time of
manufacture as indicated on the tag attached to the leak source. Use the Left and Right buttons to move the
blinking cursor across the screen to highlight the digit to be modified, and then use the Up and Down buttons to
modify that digit. Press ENT to save the new Leak Temp value.
5.2.5 Leak TEMPCO
The Leak Temperature Coefficient value is set to match the temperature coefficient of the internal leak source
as indicated on the tag attached to the leak source. Use the Left and Right buttons to move the blinking cursor
across the screen to highlight the digit to be modified, and then use the Up and Down buttons to modify that
digit. Press ENT to save the new Leak Temperature Coefficient value.
TIP: To convert a temperature coefficient from % /
o
F to %
o
C, multiply the
o
F value by a factor of 1.8. For
example: 0.3%/
o
F x 1.8 = 0.54%/
o
C.
5.2.6 Sensor Cal
The Sensor Calibration function allows the service technician to manually calibrate the instrument’s Pressure,
Flow Rate, and Box Temperature sensors. Use the Up and Down buttons to highlight the sensor to be
calibrated, and then press ENT to display that sensor’s calibration screen.
5.2.6.1 Pressure Sensor Calibration Screen
Calibrate the pressure sensor by first measuring the ambient atmospheric pressure using an appropriate
pressure measurement device calibrated to read PSIA. Next, adjust the value displayed on the Pressure
Sensor Calibration screen to match the measured pressure reading by using the Left and Right buttons to
LEAK GAS < R134A
R401A
R402A
< R402B
LEAK TEMP 0 23.9degC
LEAK TEMPCO 0.54
%/degC
PRESSURE
FLOW RATE
BOX TEMP
ENTER AMBIENT PSIA
14.18
CURRENT OFFSET=0.00
- Instruction 3015-4342 1
- WARRANTY 2
- Table of Contents 3
- Contents H25-IR 4
- H25-IR Contents 5
- 1 Introduction 7
- 1.2.5 Explosive Atmosphere 8
- 1.2.8 In Case of Malfunction 8
- 1.2.9 Cleaning 8
- 1.3 Ordering Information 9
- Introduction H25-IR 10
- 4 Instruction 3015-4342 10
- 1.6 Functional Overview 11
- 1.7.1 Front View 12
- 1.7.2 Rear View 13
- 1.7.3 Interior 13
- 1.7.4 Standard Probe 14
- 1.7.6 Smart Probe 15
- 1.8 Menu System 16
- 2 Preparing for Operation 17
- 2.5 System Setup 18
- 2.5.3 Relays 19
- 2.5.4 4–20 mA Loop 19
- BRIGHTNESS 20
- 2.6.1 Setup Name 21
- 2.6.2 Range 21
- 2.6.3 Gas Type 22
- 2.6.4 Feedback Mode 22
- 2.6.5 Setpoint 22
- 2.6.6 Search Auto Zero 23
- 18 Instruction 3015-4342 24
- Instruction 3015-4342 19 25
- 20 Instruction 3015-4342 26
- 3 Calibration 27
- 3.2 Internal Calibration 28
- 3.3 External Calibration 29
- 3.4 CAL Factor 30
- Using the CAL Factor 31
- K4=0.0 K5=0.0 32
- Instruction 3015-4342 27 33
- Instruction 3015-4342 34
- 4 Operation 35
- 4.2.3 Range Selection 36
- 4.2.4 Setup Selection 36
- 4.2.5 Volume Adjustment 36
- 4.2.6 Searching for a Leak 37
- 4.2.10 Logged Measurements 39
- 4.3 Fault Conditions 40
- 4.5 RS-232 Communication 41
- 4.6 Serial Output Types 41
- 5 Maintenance 43
- 5.1.2 Last Fault 44
- 5.1.3 IR Emitter 45
- 5.1.4 Pressure 45
- 5.1.5 Loop Test 45
- 5.1.6 Clear Last Fault 45
- 5.2 Factory Menu 46
- 5.2.3 Leak Gas 47
- 5.2.4 Leak Temp 47
- 5.2.5 Leak TEMPCO 47
- 5.2.6 Sensor Cal 47
- 5.2.7 Model Select 48
- 5.3 Flashing Memory 49
- Parts &Service H25-IR 50
- 44 Instruction 3015-4342 50
- H25-IR Operation 51
- 5.4 Part Replacement 52
- 5.4.2 Fuse Replacement 53
- 48 Instruction 3015-4342 54
- 5.4.5.1 Top Cover Removal 55
- 5.4.5.4 DIGIPOT Adjustment 56
- 5.4.5.5 Factory Calibration 56
- 5.5 Replacement Parts 58
- 5.6 Service Centers 59
- H25-IR Specifications 60
- 7 Specifications 66
- H25-IR Appendix A 68
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