Wahl 360X Instruction Manual

HEAT-Prober®PLATINUM-RTDTHERMOMETERSModels392HP,392E, 392E-S, 392EX, 392EX-S, 392EVX,392M, 392M-S, 392MX, 392MX-S, 392VX,360X and 700MINSTRUCTION MANU

1415Models 392MX, 392MVX, 392EX, and 392EVX Models 392HP, 392M and 392EUse the Circuit Board Diagrams on these pages to locate potentiometer placement

16176.8 Fahrenheit to Centigrade ConversionThe HEAT-Prober can be ordered as a °F or °C unit. The 392 will read out in°F unless a jumper is in place.

1819Each HP version probe, therefore, has its specific resistor to indicate to themicroprocessor the correction to be taken.Figure 8-1. Wiring Diagram

2021for the probe readings. Both use a common subroutine, “Get M.A.”, whichcalls “Get ND”. Control and handshaking between the converter and the com-p

2210.0 392M TROUBLE-SHOOTING AID10.1 ScopeThis section describes basic diagnostics to find the majority of the problemswith malfunctioning 392M unit

2425392 SERIES TROUBLE SHOOTING PROCEDUREStep Problem Action to be Performed If Correct If Incorrect13.Set the Wahl Calibrator to 212°Fand insert into

262712.0 CALIBRATION SERVICERecalibration service can be provided at a nominal cost, if desired. Specialthermal calibration traceable to NIST is avai

282913.2 Calibration Procedure (See Figure 13-1)13.2.1 Equipment Required1. Digital Voltmeter, Fluke 8600 41/2 digit or equivalent.2. Decade resis

30 31HOW TO USE TROUBLE-SHOOTING PROCEDURE: Locate the problem onthis table and proceed with the action starting with Step 1. Note, for all DVMand sco

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iiiiiRECEIVING INSPECTIONCheck your new Wahl Portable Platinum HEAT-Prober®Thermometer uponreceiving to assure that:1. It has not been physically dama

iv 1TABLE OF CONTENTS (Continued)8.3 Intrinsically Safe for Hazardous Location(-S Versions) 178.4 Rate of Change with Hot and ColdPeak Hold (Option R)

232.0 OPERATION (See Figure 2-1)Insert probe into jack at top. Turn on the switch at the left. The switch is 3-position; the lower detent is marked “

452.4 The BatteriesThe 392HP, 392E, 392EX, 392M, and 392MX HEAT-Prober are powered withfive size AA rechargeable nickel-cadmium batteries, 1.2 volts

673.0 PROBESProbes compatible with the 392 HEAT-Prober are constructed utilizing a wirewound Platinum RTD sensor with an R0 of 100 Ohms wired in a 3-

89392 SERIES METER SPECIFICATIONSModel392HP392E 392EX392E-S392EX-S392EVXRange-290 to 1450°F-180 to 788°C-290 to 1450°F-180 to 788°C-290 to 1450°F-180

10115.0 MAINTENANCE/REPAIRThe HEAT-Prober instrument may be recalibrated, or adjusted for a particularprobe in the field by following the directions

1213Keep decreasing the supply voltage until 5.5 volts is reached, as measuredwith a digital DVM. The meter should maintain correct operation even tho