Gas inlet temperatures – VACUUBRAND MD 1C VARIO-SP User Manual

Page 27

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(a) at 50/60 Hz

(b) at 1500 rpm

(c) running smoothly only at motor speeds higher than 200 rpm

(d) The pump is designed for operation with safe extra low voltage. Accordingly only safe extra

low voltage (SELV) may be connected to the voltage supply connections.

(e) In case of supply voltage below 100V, the lock of the cutout might be restricted.

(f) Pumps with voltage changeover switch: IP 40

(g) Measurement according to EN ISO 2151:2004 and EN ISO 3744:1995 at 230V/50Hz or

1500rpm (MD 1C VARIO-SP) and at ultimate vacuum with exhaust tube at outlet

Gas inlet temperatures

Operating condition

Inlet pressure

Permitted range of gas

temperatures at inlet

Continuous operation

> 75 Torr (100 mbar)

(high gas load)

50 °F to 104 °F

(+10°C to +40°C)

Continuous operation

< 75 Torr (100 mbar)

(low gas load)

32 °F to 140 °F*

(0°C to +60°C*)

Short-time

(< 5 minutes)

< 75 Torr (100 mbar)

(low gas load)

14 °F to 176 °F*

(-10°C to +80°C*)

* if pumping potentially explosive atmospheres: 50 °F to 104 °F (+10°C to +40°C)

Type

MD 1C

MD 1C +

AK + EK

MZ 1C

MD 1C

VARIO-SP

Weight approx.

MD 1C C/US

MD 1C + AK + EK

MD 1C + AK + EK C/US

lbs. (kg)

lbs. (kg)

lbs. (kg)

lbs. (kg)

15.2 (6.9)

15.7 (7.1)

22.5 (10.2)

22.9 (10.4)

13.2 (6.0)

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-

-

9.3 (4.2)

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