Temperature, noise and radiation control meters М42301, М42304

Millivoltmeter М42304 is used to measure thermal EMF of thermocouples type KhA (K), KhK (L), PP (S), PR (D) with rated static conversion response.
Microammeter М42304 is intended for using in the noise measurement equipment. М42301 is designed for using in the special (GO-27, DP-3 Б) and other equipment. When ordering, the letter (p)* is added to meters designation. The meter has the special design with scale graduation as per the Customer’s data.
To protect against contact with current-carrying rods, meters М42304 may be supplied with protective caps KZ-4. The need of supply shall be specified in case of order.
* М42301(p) – dust-drop-proof meters with the possibility of external scale lighting.

Specifications

Documentation

Overall drawings

Related products

М42304
measurement range	actuation mode	operation conditions
μA* – 150 (10dB)	Directly	Temperature -50...+60 °С, relative humidity 95 % at temperature +35 °С. Resistance to vibration: acceleration 2...30 m/s², frequency 10...50 Hz. Resistance to shock: acceleration 50 m/s², frequency 10...50 shocks per min.
mV – 0-11.263** (1600 °С PR(V))	With external adjusting resistance of 5 Ω	Temperature -50...+60 °С, relative humidity 95 % at temperature +35 °С. Resistance to vibration: acceleration up to 5...10 m/s², frequency 10...50 Hz. Resistance to shock: acceleration 50 m/s², frequency 10...50 shocks per min.
0-13.159** (1300 °С PP(S))
0-13.591** (1800 °С PR(V))
0-31.492 (400°C KhK(L))
0-49.108 (600 °С KhK(L)) 0-37.326 (900 °С KhA(K))
0-45.119 (1100 °С KhA(K))
mV – 0-49.108 (600 °С KhK(L))	With external adjusting resistance of 15 Ω
* – the meters may be manufactured with other measurement ranges, sensitivity of 15 μA max. ** – they are manufactured only for operation in conditions of moderate climate and with accuracy class of 2.5 only.

М42301
measurement range	actuation mode	operation conditions
μA – 0-100 (5/150 R/h; 1/500 R/h; 100 %, empty scale)	Directly	Temperature -50...+60 °С, relative humidity 98 % at temperature +35 °С. Resistance to vibration: acceleration up to 2...30 m/s², frequency 10...120 Hz. Resistance to shock: acceleration 100 m/s², frequency 10...50 shocks per min.
0-150 (5/150 R/h )
V – 0-100
А – 0-10; 10-0-10
Note: meters М42301 are manufactured with accuracy class 4.0; meters with an empty scale – accuracy class 2.5.

Ordering example

Microammeter М42301(p), 0-150 µA, scale 5/150 R/h, 4, v, TU 25-7504.132-2007
For microammeter М42301, the design with the possibility of external scale lighting (p), rated value of 150 µA, scale 5/150 R/h, accuracy class 4, the standard position is vertical.

Millivoltmeter М42304, 0...31.488 mV, scale 0...400 °С KhK (L), 1.5, v, TU 25-7504.131-2007
For millivoltmeter М42304, with rated value of 31.488 mV, with scale of 0-400 °С KhK (L), accuracy class 1.5, the standard position is vertical.

For reference only:
v/g - vertical/horizontal position;
Б – dust-drop-proof design;
(m) – advanced mechanical characteristics;
(p) – the design with the possibility of external scale lighting.

М42304 Сertificate of conformity (jpg, 399.2 Kb ) View Download

М42301 Сertificate of conformity (pdf, 979.8 Kb ) View Download

М42301 Manual (pdf, 316 Kb ) View Download

М42304 Manual (pdf, 308.1 Kb ) View Download

Has been found to conform to requirements Russian Maritime Register of Shipping (pdf, 943.5 Kb ) View Download