6
INVUE GV148 LIQUID CHEMICAL CONCENTRATION MONITOR
User Guide | Entegris, Inc.
SPECIFICATIONS
—
Materials of
construction
Flow cell body
Polytetrafluoroethylene (PTFE)*
Optical window
Single-crystal sapphire*
Cable jacket
Polyvinylchloride (PVC)
Bonnet, enclosure
Polyvinylidene fluoride (PVDF)
Mounting plate
Polypropylene (PP)
Electrical
Cable connection
19 pin Turck
®
male
Current rating
1.0 A at start-up; 0.5 A during operation
Main voltage input
24 VDC ±10%
Digital IO voltage input
12 – 24 VDC
Short protection**
Yes
External LEDs
4
Analog outputs
4 – 20 mA concentration, fluid temperature,
refractive index (RI)
Discrete digital inputs
2
Discrete digital outputs
2, 80 mAdc maximum (each)
Re-zero
Digital input, serial command, or HMI software
Serial communication
RS485
2-wire or 4-wire
RS422
4-wire
Operating system compatibility
Windows 7 or 10
Network compatible
Yes
Pressure and thermal
Maximum pressure
80 psig at 40°C (104°F)
Process fluid temperature range
20° to 40°C (68° to 104°F)
Ambient temperature range
20° to 35°C (68° to 95°F)
Storage temperature range
-15° to 40°C (5° to 104°F)
RI Measurement
RI range***
1.32 to 1.40 nD
Accuracy
±2 × 10
-4
nD (@ 20°C [68°F] from 1.332987 to 1.4000 nD)
Repeatability
5 × 10
-5
nD (in clear fluid @ 20°C [68°F])
Precision
3 × 10
-6
nD (in DI water @ 20°C [68°F])
Response time
<3 sec unaveraged response to 63% of steady state change
Drift
<5 × 10
-5
nD/30 days (in DI water @ 20°C [68°F])
Pressure sensitivity (typical)
8 × 10
-7
nD/psig in DI water (typical in DI water @ 20°C [68°F])
ROHS compliant
Yes
Enclosure
IP54
Orientation
Any
*Wetted components.
**See Electrical Connections Step 1.
***For fluids with an RI above/below, please consult your local Entegris salesperson.
