Technical Specifications
Operating temperature
Performance
|
Specifications
|
| Accuracy |
± 2% RD for flow > 50% of max. capacity
± (1% RD + 0.5% FS) on lower flows |
| Repeatability |
< 0.2% FS typical |
| Pre-installed gases |
Air, N2, O2 and CO |
| Standard calibration gas |
Air, other gases are converted using our Fluidat® conversion model which will introduce extra inaccuracy |
| Media |
Non-hazardous gases; Helium excepted |
| Rangeability |
up to 1:100 |
| Operating pressure |
0 .. 10 bar(g) / 0 .. 150 psi(g) |
Pressure coefficient
|
0.2% / bar typical at Air |
| Operating temperature |
0 .. 50°C (32 .. 122°F) |
| Temperature coefficient |
Zero: <0.1%FS/°C, Span: <0.2%RD/°C |
| Attidude sensitivity |
< 0.1% FS |
| Response time (t63%) |
2 s |
| Min. ΔP |
1 bar(d) |
| Max. ΔP |
7 bar(d) |
| Control accuracy |
Less than 0,5-1% RD/bar |
* Notes:
- Mass flow units ln/min and SLM refer to normal operating conditions,
i.e. 0°C (32°F) and 1013 mbar (14.7 psi)
- Technical specifications are based on Air at maximum FS
- All specifications subject to change without notice
Mechanical
|
Specifications
|
| Materials (wetted parts) |
Meter: aluminium, Viton
Needle Valve: Fluorosint, Brass, Buna N
Controller: membrane Fiber-reinforced nitrile |
| Gas connections (in/out) |
G 1/4" BSPP female |
Electrical
|
Specifications
|
| Electrical connection |
8-pin RJ-45 modular jack |
| Output |
analog: 0 .. 5 Vdc
digital: RS232 / RS485 (Modbus-RTU/ASCII) |
| Required supply voltage |
15 .. 24 Vdc (± 10%) |
| Power consumption |
approx. 135 mA / 2W |
| Min. and max. relay contracts |
switching current 0.5 A, 24 Vdc
one side grounded (0 Vdc power) |
Safety
|
Specifications
|
| Test pressure |
21 bar (a) / 300 psi (a) |
| Ingress protection |
IP-40 |
| EMC |
EU declaration |
Electrical Connection
Display Menu
The 4-way button with center push gives access to a user-friendly menu, e.g. for zero function, for selection of pre-installed gases in pre-installed ranges, setting of engineering units, alarm functions (minimum/maximum/counter limit) and counter functions. Password protection is provided to prevent unauthorizes changes. Below overview of the MASS-VIEW® menu functions illustrates the great versatility of this product line.
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