GF Signet 2750-7 pH Electronics - Manual (Page 2)

Georg Fischer Signet LLC, 3401 Aerojet Avenue, El Monte, CA 91731-2882 U.S.A. • Tel. (626) 571-2770 • Fax (626) 573-2057
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3-2750-7.090 Rev C 05/11 English © Georg Fischer Signet LLC 2011
4. Specifi cations
Electrical
Input Specifi cations:
Input Impedance: > 10 11 Ω
Temperature Drift: ± 0.002 pH per ºC
Input Resolution: 0.02 pH, 0.3 ºC
Output Specifi cations:
Digital (S 3 L): Serial ASCII, TTL level 9600 bps
Maximum Cable Length: 30 m (100 ft)
Environmental
Storage Temperature:
–20 °C to 85 °C (–4 °F to 185 °F)
Operating Temperature (Electronics Only):
0 °C to 85 °C (32 °F to 185 °F)
Relative Humidity:
0 to 95%, non-condensing
Enclosure Requirements:
NEMA 4X/IP65 with electrode connected
Standards and Approvals
CE
Manufactured under ISO 9001 and ISO 14001
China RoHS (Go to www.gfsignet.com for details)
General
Compatible Electrode:
Signet 2724-00 Flat pH electrode
Compatible Instrument:
Signet 3-8630-3P Chlorine Transmitter
Mounting:
DryLoc connection
Materials:
Valox ®* (PBT)
Cable:
4.6 m (15 ft) 3 conductor shielded, 22 AWG
Shipping Weight:
0.64 kg (1.41 lb)
Performance
Electronics Accuracy:
± 0.03 pH @ 25 °C
Resolution :
0.02 pH
Response Time (includes electrode response):
< 6 s for 95% of change
Operational Range:
0.00 to 14.00 pH
* Valox ® is a registered trademark of SABIC Innovative Plastics
3. Wiring
Wiring to the Signet 8630 Chlorine Transmitter
• Remove approximately 10 mm (0.4 in.) of insulation and tin each conductor before inserting into terminals.
18
17
16 Signal Ground
Digital (S3L) data
+5 VDC
White
Red
Black
Shield
• For calibration and confi guration please refer to the 3-8630 Signet Chlorine Transmitter manual.
61.0 mm
(2.40 in.)
96 mm
(3.78 in.)
23 mm
(0.91 in.)