ii
iii
RECEIVING INSPECTION
Check your new Wahl Portable Platinum HEAT-Prober
®
Thermometer upon
receiving to assure that:
1. It has not been physically damaged in transit.
2. All parts are included.
Then, plug in the probe at top and turn it on to see that it reads room tem-
perature.
If a fault is determined, take the following steps:
1. Notify the Wahl factory of the difficulty. Give number and descrip-
tion. Wahl will issue a Return Merchandise Authorization, and notify our serv-
ice department to receive the unit.
2. Return the instrument in its shipping container to the factory,
freight prepaid. Repairs will be made under warranty or at regular service
cost.
Warranty: HEAT-Prober
®
Meters
Wahl Instruments, Inc., hereinafter referred to as Wahl, warrants each instru-
ment of its manufacture to be free from defects in material and workmanship
under normal use and service. Wahl agrees to repair or replace any product
which upon examination is revealed to have been defective due to faulty
workmanship or material if returned to our factory, transportation charges
prepaid, within three years from the date of shipment. This warranty is in lieu
of all other warranties, expressed or implied and of all obligations or liabili-
ties on its part for damages including but not limited to consequential dam-
ages, following the use or misuse of instruments sold by Wahl. No agent is
authorized to assume for Wahl any liablility except as set forth above.
Warranty: Temperature Probes and Meter Accessories
Wahl warrants its Hand-Held Meter Temperature Probes to be free of defects
in workmanship or material. Due to the environmental nature of their use,
probes cannot be replaced without cost unless returned unused within a 30-
day period. Wahl assumes no liability for damages of any kind, direct or indi-
rect, as a result of installation and/or use of its products; nor any costs
resulting from removing and reinstalling any of its products for replacement
under terms of this warranty.
TABLE OF CONTENTS
Page
1.0
INTRODUCTION
1
1.1
Qualification Tests
1
1.2
Hazardous Location Operation
1
2.0
OPERATION
2
2.1
Meter Operation
2
2.2
Automatic Polarity
2
2.3
Digital Display and Accuracy
2
2.4
The Batteries
5
2.4.1
Recharging
5
2.4.2
Continuous Operation
5
3.0
PROBES
6
3.1
Interchangeability
6
3.2
Temperature Sensors in Use
7
4.0
SPECIFICATIONS
Model 392M, 392MX, 392VX,
392E, 392EX, 392EVX, 392HP Platinum Meters
8
5.0
MAINTENANCE/REPAIR
10
6.0
SETUP AND CALIBRATION
11
6.1
Equipment Needed
11
6.2
Voltage Regulator Adjustment
11
6.3
Low Battery Adjustment and Testing
11
6.4
Zero Adjustment Using Wahl Calibrator
12
6.5
Span Adjustment Using Wahl Calibrator
12
6.6
Adjustment Using Decade Resistance Box.
12
6.7
Peak Hold Circuit
13
6.8
Fahrenheit to Centigrade Conversion
16
6.9
Open Probe Display
16
6.9.1
“Help” Display
16
7.0
THERMAL CALIBRATION PROCEDURE
16
8.0
392HP and 392M OPTIONS
17
8.1
392HP
17
8.2
Degree F to C Conversions (Suffix D)
17