| SPECIFICATIONS: Span
- acid-resistant bellows: 0.025 to 0.5 kg/dm3
- normal PTFE bellows: 0.025 to 0.5 kg/dm3
- shallow-fold hygienic PTFE bellows: 0.1 to 0.5 kg/dm3
- silicone-lined bellows: 0.025 to 0.5 kg/dm3.
| Error, percent of span 1) |
Min. span:
0.025 kg/dm3 |
Medium span:
0.250 kg/dm3 |
Max. span:
0.500 kg/dm3 |
| - Non-linearity: |
± 0.25 % |
± 0.05 % |
± 0.05 % |
| - Hysteresis: |
0.20 % |
0.05 % |
0.05 % |
| - Sensitivity: |
< 0.10% |
< 0.10% |
< 0.10% |
| - Repeatability: |
0.15 % |
0.04 % |
0.04 % |
| - Effect of a 1 bar process
pressure change on range zero between 0 and 10 bar |
± 0.20 % |
± 0.02 % |
± 0.01 % |
| - Effect of supply voltage change:
0.05 %/10 V |
|
|
|
1) This does not apply
to DENS-EL transmitters with shallow-fold PTFE bellows.
Lower range value: 0.5 to 2.5 kg/dm3.
Output signal
- 2-wire system and (Ex)i: 4 to 20 mA
- 3-wire system: 0 to 20 mA.
Supply voltage: 24 to 50 V DC.
Type Ex intrinsically safe (VDE 0171)
(Ex) is G5 PTB Nr. 111 B/E-29 847 B output 4 to 20 mA. Valid only by the transmitters of
metal tube type.
Permissible load
- 2-wire system
|
- 24 V supply:
370  |
|
- 48 V supply:
1400 |
- 3-wire system
|
- 24 V supply:
500 |
|
-
48 V supply: 1500 |
Application ranges
- density: 0.5 to 3.0 kg/dm3
- max. flow
|
- AISI 316
tube, ø32: approx. 120 l/min |
|
-
glass tube, ø25: approx. 80 l/min |
|
-
HASTELLOY C tube, ø25: approx. 80 l/min |
For higher flows the transmitter is
located in a by-pass line or a reflux branch.
- working pressure
|
- acid-resistant
bellows: 10 bar, Upon request 20 bar (static press. calib.) |
|
-
silicone-lined bellows: 10 bar, Upon request 20 bar (static press. calib.) |
|
- The max.
press. of hoses must be checked. |
|
- PTFE
bellows: see curve |
|
- DENS-EL
Ex i version: 7 bar |
- resistance to pressure shocks
|
- acid resistant
bellows 25 bar |
|
- rubber
lined bellows 25 bar |
- max. temperature: 110°C
- max. viscosity: 10 Pa x s
Temperature compensation
Compensation may be adjusted for either linear or curved characteristic.
- max. width of compensation range (depending on the characteristics of the process
fluid): t = 40 to 80°C
- max. permissible density change for 1 K temperature change in process fluid
|
- with normal
counterweight: 0.0011 kg/dm3 |
|
- with
double compensation weight: 0.0022 kg/dm3. |
Max. ambient temperature:
60°C
Mounting
In horizontal position on a firm, vibration-free base.
Process connections
In metal tube type (AISI 316), a 1 1/2" fitting for tubing, or a quick-disconnect
fitting corresponding to 3-A standard or flange coupling DN32 PN40.
In glass tube and HASTELLOY C type, a DN25 PN40 flange connection.
DENS-EL Ex i version, DN32 PN40 flange connection.
Electrical connections
To terminal strip in junction box as shown in wiring diagram. Inlet through Pg 13.5 gland.
Materials
- measurement tube of acid-resistant steel, Pyrex glass, or HASTELLOY C
- bellows of acid-resistant steel, NBR-lined acid-resistant steel, or PTFE
- fittings of acid-resistant steel AISI 316
- body and case of steel with epoxy powder paint to prevent corrosion.
Calibration
The transmitter is factory-calibrated. The customer should supply the necessary data for
calibration by filling in a questionnaire which is returned to the manufacturer as an
appendix to the order.
Protection degree: IP 54
Weight: approx. 105 kg.
 The pressure rating of the PTFE bellows of the glass tube type transmitter, as a
function of temperature.
We reserve the right to make
technical changes without prior notice. Performance is indicated in accordance with IEC546
and IEC770 recommendations. |
