Wahl 392HP Instruction Manual

1, HEAT-Prober ® PLATINUM-RTD T HERMOMETERS Models 392HP, 392E, 392E-S, 392EX, 392EX-S, 392EVX, 392M, 392M-S, 392MX, 392MX-S, 392VX, 360X and 700M INSTRUCTION MANUAL ©Copyright 2004 Wahl Instruments, Inc. Printed in USA W-392 (Rev. M) …

17, 28 29 13.2 Calibration Procedure (See Figure 13-1) 13.2.1 Equipment Required 1. Digital Voltmeter, Fluke 8600 41/2 digit or equivalent. 2. Decade resistance box with a range to 30K and resolution to one ohm. Accuracy required can be determined by using the thermistor slope at…

12, Wahl 392HP 18 19 Each HP version probe, therefore, has its specific resistor to indicate to the microprocessor the correction to be taken. Figure 8-1. Wiring Diagram for 392HP Figure 8-2. 4-Pin Probe Connector Expanded View 8.4 Rate of Change with Hot and Cold Peak Hold (Order Option R) This unit has mi…

11, 16 17 6.8 Fahrenheit to Centigrade Conversion The HEAT-Prober can be ordered as a °F or °C unit. The 392 will read out in °F unless a jumper is in place. When jumped to equivalent reading of what was displayed in °F will be displayed in °C. The computer makes the calcula- tion and there…

5, 4 5 2.4 The Batteries The 392HP, 392E, 392EX, 392M, and 392MX HEAT-Prober are powered with five size AA rechargeable nickel-cadmium batteries, 1.2 volts each. The total capacity is 650 milliampere hours at 6.0 volts. The display demands the largest power drain. Depending on the n…

9, 12 13 Keep decreasing the supply voltage until 5.5 volts is reached, as measured with a digital DVM. The meter should maintain correct operation even though the small “L” or “Lo Bat” is on, indicating a low battery. Now raise the voltage back up until the small “L” or “Lo Bat�…