Specifications

molbox™ RFM™ OPERATION AND MAINTENANCE MANUAL
© 1998-2007 DH Instruments, a Fluke Company Page 2
1.2 SPECIFICATIONS
1.2.1 GENERAL SPECIFICATIONS
Power Requirements
85 to 264 VAC, 47 to 440 Hz, 18 VA max. consumption
Fuse
1A/250V, slow blow, 5x20mm, NSN: 5920008930491
Operating Temperature Range
15 to 35 °C
Storage Temperature Range
-20 to 70 °C
Vibration
Meets MIL-T-28800D
Weight
2.55 kg (5.6 lb) max.
Dimensions
8 cm H x 22.5 cm W x 20 cm D
(3.1 in. x 8.9 in. x 7.9 in.) approx.
Microprocessor
Motorola 68302, 16 MHz
Communication Ports
RS232 (COM1), RS232 (COM2), IEEE-488
Reference Pressure Transducers
(RPTs)
Standard: 2 x 600 kPa (87 psia) calibrated range piezoresistive silicon
Microrange option: 12.5 kPa (1.8 psid) piezoresistive silicon
Ohmic Measurement System
Resolution: 0.004 Ω
Accuracy: ± 0.02 % of reading
Accuracy of 100 and 110 Ω reference resistors: ± 0.01 %
Stability of 100 and 110 Ω reference resistors: ± 0.005 % per three years
Gases Supported
With molbloc-L Nitrogen (N2), Air, Argon (Ar), Butane (Butn), Carbon
Monoxide (CO), Helium (He), Oxygen (O2), Carbon Dioxide (CO2),
Carbon Tetrafluoride (CF4), Octofluorocyclobutane (C4F8), Ethane
(C2H6), Ethylene (C2H4), Fluoroform (CHF3), Hexafluoroethane (C2F6),
Hydrogen (H2), Methane (CH4), Nitrous Oxide (N2O), Propane (C3H8),
Sulfur Hexafluoride (SF6), Xenon (Xe)
With molbloc-S Nitrogen (N2), Air (dry and humid)
Pressure Connections
Quick connectors equivalent to Swagelok QM Series (-QM2-B200)
Pressure Limits
Maximum working pressure 600 kPa absolute (87 psia)
Maximum pressure without damage 800 kPa absolute (115 psia)
NOTE: The microrange option includes a 12.5 kPa (1.8 psi) differential
RPT which may be damaged by differential pressure greater than 100
kPa (15 psi).
Flow Ranges
See Sections 1.2.4.1.3, 1.2.4.1.4and 1.2.4.2.1
CE Conformance
Available. Must be specified.
1.2.2 REFERENCE PRESSURE TRANSDUCER (RPT)
SPECIFICATIONS
1.2.2.1 UPSTREAM AND DOWNSTREAM RPTS
Type
Piezoresistive silicon
Range
0 to 600 kPa absolute (0 to 87 psia)
Resolution
6.0 Pa (0.0009 psi)
Repeatability
± 0.01 % FS
Accuracy
Absolute measurements: ± 0.05 % FS for one year
Differential measurements: ± (20 Pa + 0.05 % ΔΡ). Taring sequence eliminates zero
error on measurement of difference between the two RPTs.