Download Sigma 950 - Hach Flow

Specification
Details
Data logging
"Smart" dynamic memory allocation automatically partitions memory to supply the
maximum logging time.
Memory mode: slate or wrap-around
128 kB of RAM (standard): 17,280 readings maximum; 512 kB of RAM (optional):
115,630 readings maximum
Daily statistics: 32 days kept maximum
Recording interval (configurable)
Sampler output
12–17 VDC pulse, 100 mA maximum at 500 ms duration
Communications
RS232 - up to 19,200 baud
Modem - 14,400 bps., V.32 bis. V.42, MNP2-4 error correction; V.42 bis MNP5 data
compression
SCADA - Modbus communication protocol (standard) through RS232 or optional
modem
4–20 mA outputs (maximum of 2), isolation voltage rating:
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Between instrument and either 4–20 mA output: 2500 VAC
Between the two 4–20 mA outputs: 1500 VAC
Maximum resistive load: 600 Ω
Output voltage: 24 VDC, no load
Alarm relays (maximum of 4), form C relays, rated for 10 A at 120 VAC or 5 A at
240 VAC resistive load minimum; normally open and normally closed contacts
available
Certification
CE mark - some 950 models (such as 3248, 3522 and 2672). Refer to Installation
requirements for CE marked instruments on page 8.
CE mark - 230 V AC-DC power converter and cETLus 115 V AC-DC power converter
(UL/CSA 61010-1 Safety Standard)
General information
In no event will the manufacturer be liable for direct, indirect, special, incidental or consequential
damages resulting from any defect or omission in this manual. The manufacturer reserves the right to
make changes in this manual and the products it describes at any time, without notice or obligation.
Revised editions are found on the manufacturer’s website.
Safety information
NOTICE
The manufacturer is not responsible for any damages due to misapplication or misuse of this product including,
without limitation, direct, incidental and consequential damages, and disclaims such damages to the full extent
permitted under applicable law. The user is solely responsible to identify critical application risks and install
appropriate mechanisms to protect processes during a possible equipment malfunction.
Please read this entire manual before unpacking, setting up or operating this equipment. Pay
attention to all danger and caution statements. Failure to do so could result in serious injury to the
operator or damage to the equipment.
Make sure that the protection provided by this equipment is not impaired. Do not use or install this
equipment in any manner other than that specified in this manual.
Use of hazard information
DANGER
Indicates a potentially or imminently hazardous situation which, if not avoided, will result in death or serious injury.
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