National Item Identification Number

01-390-6257
013906257
6685-01-390-6257
6685013906257

National Stock Number

Item Name

TESTER,PYROMETER AND THERMOCOUPLE

Federal Supply Class

6685

Description

An instrument used for checking thermocouples and pyrometers. It is designed with a compensator which can be adjusted so that the measured electromotive force, corrected to a standard reference temperature, can be read directly from a scale. It can be used as a pH meter. Excludes RESISTOR, VARIABLE, WIRE WOUND; RESISTOR, VARIABLE, NONWIRE WOUND; METER, HYDROGEN ION TEST; and PYROMETER (as modified).

Commercial and Government Entity Code (Supplier Data)

---

07239

---

AVO INTL
DBA AVO INTL
2621 VAN BUREN AVE
NORRISTOWN
PA
19403

---

07239

---

AVO INTL
DBA AVO INTL
2621 VAN BUREN AVE
NORRISTOWN
PA
19403

---

Reference Numbers (Part Numbers)

4225T-X
720390

Required Categories

MEASUREMENT TYPE
SCALE TYPE
SCALE RANGE
SCALE ACCURACY
SCALE CALIBRATION
SC

Required Description

MILLIVOLT CIRCUIT
HORIZONTAL
-200.0 TO 4000.0 MILLIVOLTS
+/- 0.02 PERCENT
NI