GF Signet 8850-2 Manual

‡ SIGNET 8850-2 Conductivity/Resistivity Transmitter
3-8850.090-2
D-10/01 English
CAUTION!
• Remove power to unit before wiring
input and output connections.
• Follow instructions carefully to avoid
personal injury.
1. Installation
ProcessPro transmitters are available in two styles: panel mount and field mount. The panel mount is supplied with the necessary
hardware to install the transmitter. This manual includes complete panel mounting instructions.
Field mounting requires a separate mounting kit. The 3-8050 Universal kit enables the transmitter to be installed virtually
anywhere. Detailed instructions for field installation options are included with the 3-8050 Universal kit.
1.1 Panel Installation
1. The panel mount transmitter is designed for installation using a 1/4 DIN Punch. For manual panel cutout, an adhesive
template is provided as an installation guide. Recommended clearance on all sides between instruments is 1 inch.
2. Place gasket on instrument, and install in panel.
3. Slide mounting bracket over back of instrument until quick-clips snap into latches on side of instrument.
4. To remove, secure instrument temporarily with tape from front or grip from rear of instrument. DO NOT RELEASE.
Press quick-clips outward and remove.
96 mm
(3.8 in.)
96 mm
(3.8 in.)
FRONT VIEW
Field Mount &
Panel Mount

2. Specifications

General
Compatible electrodes: +GF+ SIGNET 3-28XX-1 Standard and
Certified (NIST) Series Conductivity/Resistivity Electrodes
Accuracy: ±2% of reading
Enclosure:
• Rating: NEMA 4X/IP65 front
• Case: PBT
• Panel case gasket: Neoprene
• Window: Polyurethane coated polycarbonate
• Keypad: Sealed 4-key silicone rubber
• Weight: Approx. 325g (12 oz.)
Display:
• Alphanumeric 2 x 16 LCD
• Contrast: User selected, 5 levels
• Update rate: 1 second
Electrical
Power: 12 to 24 VDC ±10%, regulated, 290 mA max.
Sensor input range:
Conductance: 0.055 to 400,000 µS
•
• Resistivity: 10 KΩ to 18.2 MΩ
• TDS: 0.023 to 200,000 ppm
( Measurements from 10 MΩ to 18 MΩ (0.055 µS to 0.1 µS) must
be performed in solution temperatures from 20 °C to 100 °C. )
• Temperature: PT 1000, -25 to 120°C (-13 to 248°F)
Current output:
• 4 to 20 mA, isolated, fully adjustable and reversible
‡ SIGNET 8850-2 Conductivity/Resistivity Transmitter
82 mm
(3.23 in.)
106 mm
(4.18 in.) 41 mm
(1.6 in.
SIDE VIEW
Field Mount
Contents
1. Installation
2. Specifications
3. Electrical Connections
4. Menu Functions
Optional
92 mm
Rear
(3.6 in.)
Cover
latch
56 mm
(2.2 in.)
)
97 mm
(3.8 in.)
SIDE VIEW
Panel Mount
Panel Mount Installation Detail
• Max loop impedance:
• Update rate: 0.5 seconds
Accuracy: ±0.03 mA @ 25°C, 24 V
•
Relay outputs (2 sets mechanical SPDT contacts):
• Maximum voltage rating:
5 A @ 30 VDC, or 5 A @ 250 VAC, resistive load
• Hi or Lo programmable with adjustable hysteresis
• Pulse programmable (maximum 400 pulses/minute)
Environmental
• Operating temperature: -10 to 70°C (14 to 158°F)
• Storage temperature:
• Relative humidity:
• Maximum altitude:
• Insulation category:
• Pollution degree:
Standards and Approvals
• CSA, CE, UL listed
• Immunity: EN50082-2
• Emissions: EN55011
• Safety: EN61010
• Manufactured under ISO 9001 and ISO 14001
U.S.A. Patent # 5,708,363
ENGLISH
Conductivity/Resistivity
62.50 uS
25.0°C
Relay 1
panel
gasket
mounting
bracket
terminals
quick-clips
50 Ω max. @ 12 V
325 Ω max. @ 18 V
600 Ω max. @ 24 V
-15 to 80°C (5 to 176°F)
0 to 95%, non-condensing
2000 m (6562 ft)
II
2
page 1 of 12
Relay 2
ENTER