Heat-Prober
®
Platinum-RTD Thermometers User Manual
3
TABLE OF CONTENTS
Page
1.0
INTRODUCTION
5
1.1
Qualification Tests
5
2.0
OPERATION
5
2.1
Meter Operation
5
2.2
Automatic Polarity
6
2.3
Digital Display and Accuracy
6
2.4
The Batteries
8
2.4.1
Recharging
8
2.4.2
Continuous Operation
8
3.0
PROBES
9
3.1
Interchangeability
9
3.2
Temperature Sensors in Use
10
4.0
SPECIFICATIONS
Model 392M, 392MX, 392VX,
392E, 392EX, 392EVX, 392HP Platinum Meters 11
5.0
MAINTENANCE/REPAIR
13
6.0
SETUP AND CALIBRATION
15
6.1
Equipment Needed
15
6.2
Voltage Regulator Adjustment
15
6.3
Low Battery Adjustment and Testing
16
6.4
Zero Adjustment Using Wahl Calibrator
16
6.5
Span Adjustment Using Wahl Calibrator
17
6.6
Adjustment Using Decade Resistance Box.
17
6.7
Peak Hold Circuit
18
6.8
Fahrenheit to Centigrade Conversion
21
6.9
Open Probe Display
21
6.9.1
“Help” Display
21
7.0
THERMAL CALIBRATION PROCEDURE
21
8.0
392HP and 392M OPTIONS
22
8.1
392HP
23
8.2
Degree F to C Conversions (Suffix D)
23
