Rudolf Tietzsch was founded in 1950 in Casterlup Lauksel and initially specialized in the production of precision machinery and equipment, such as gas and flow testers, with only small batch production and customers mainly concentrated in the Ruhr area. In 1953, Rudolph Tietzsch developed a high-precision, stable, and safe voltage test ball using a new type of dust-proof rubber housing. Its reliability and high safety were recognized by heavy industry and energy producers. The success of the voltage test ball led to an expansion of the product range. Today, Rudolph Tietzsch can produce various electrical engineering products, such as multimeters, megohmmeters, resistance testers, etc. These products are used in industries such as mining and power, and have won unanimous praise from customers.

Rudolf Tietzsch Explosion proof Megohmmeter from Germany
ΩMegaSafe ISO 1Ex Megohmmeter
Compliant with EN 61557-2 (VDE 0413-2) for testing insulation resistance in explosive hazardous areas and EN61340 for testing discharge resistance and electrostatic resistance
Explosion proof grade:
Ex II 2 G Ex ib IIB T4, BVS 06 ATEX E130
Ex I M2 （M1） EX ib [ia] I, BVS 06 ATEX E130
Test range resolution accuracy
1.999 M Ω 1 k Ω 5%+/-5 words
19.99 M Ω 10 k Ω 5%+/-5 words
199.9 M Ω 100 k Ω 5%+/-5 words
1.999 G Ω 1 M Ω 5%+/-5 words
19.99 G Ω 10 M Ω 10%+/-5 words
199.9 G Ω 100 M Ω 10%+/-5 words
1999 G Ω 1 G Ω 25%+/-5 words

Test voltage: 32V, 100V, 500V optional
Test current: 64uA （32V）, 200uA （100V）, 1mA （500V）
External voltage detection and alarm: 24-400VAC, 15-500VDC
Dual row 3-bit LCD displays test voltage and resistance readings
CAT level: CAT III 600V
9V AlMn battery, IEC 6LR61
ABS impact resistant plastic casing, crack resistant screen protector, anti-static coating
IP65 protection level
Size: 60 x 230 x 40mm
Weight: 220g