Accessories - Wahl HEAT-Prober 392HP Instruction Manual

392 S T
ERIES ROUBLE
Step Problem Action to be Performed
Set the Wahl Calibrator to 212°F
and insert into the T/C connector.
Use DVM to measure the follow-
ing voltages U3-12 should be .255
13.
to .275V U3-13 should be .071 to
.079V
*U3-1 should be .580 to .620V
*U3-3 should be .660 to .710V
*U34 should be .660 to .710V
U3-14 should be .017 to .079V
U3-15 should be .580 to .620V
Check the output of U1-4 for a 0
to 6 volt square wave of approx.
14.
10 kHz æ 2 kHz.
Check for a sawtooth wave at U1-
1. It should have a voltage level of
1.8 to +4.2 volts.
15.
Return unit to factory for repair.
16.
*NOTE: Does not apply to 392MX and 392M with Serial Numbers before N120
S P
HOOTING ROCEDURE
If Correct If Incorrect
Proceed to If any voltage is
next meas- incorrect, check
urement. R1-R17, R35,
R36, CR6 and
CR7. Also check
wires from con-
nector to circuit
board.
Proceed to Replace U3 and
next step. if problem is not
corrected, go to
Step 16.
Replace CR1 Proceed to next
and CR2. step.
Replace U1. Replace C67 and
If display recheck
still reads U1-1. If problem
-OL-replace is not corrected
U4. go to step 16.
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11.0 ACCESSORIES

392 S
ERIES
Model Number
DA-4 Silicone Paste
DA-6 Belt-Clip Meter Case with Hand Strap
DA-10 Nylon Safety Wrist Strap
DA-60 Shock-Proof attache-style Instrument Case
11681-1 Spare NiCad Battery Pack
11681-2 Spare NiCad Pack for -S Models
MN1604 Standard 9V Alkaline Battery
MA150 Battery Recharger, 120V AC 50/60Hz
MA150E Battery Recharger, 220V AC 50/60Hz, European
M
ETER
Certificate with 3 Standard Calibration Points between 32°F (0°C)
392NIST
& 500°F (250°C) Meter calibration includes one probe.
Certificate with 3 User-specified Calibration Points between -40°F
392NIST-1
(-40°C) & 600°F (315°C) Meter calibration includes one probe.
392 S
ERIES
Model Number Usable With Meter
392E, 392EX, 392EVX,
CAL392-HT 392M, 392MX, 392VX
and 700M
CAL392HP-HT 392HP only
392E, 392EX, 392EVX,
392M, 392MX, 392VX
CAL392-LT
Ice Point to Boil
Calibrator
392HP only
CAL392HP-LT Ice Point to Boil
Calibrator
M A
ETER CCESSORIES
Description
O
PTIONS
C
ALIBRATORS
Calibration Points
-58°F, 32°F, 212°F, 284°F, 752°F
-50°C, 0°C, 100°C, 140°, 400°C
32°F, 68°F, 104°F, 140°F, 212°
0°C, 20°C, 40°C, 60°C, 100°C
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