GF Signet 3-8900 Multi-Parameter Controller

Signet 8900 Series

Description: 3-8900 GF Signet Multi-Parameter Controller. {$data.specific.pos2} Number of Inputs, {$data.specific.pos3} Power Supply, {$data.specific.pos4} Number of Relay, {$data.specific.pos6} Output Types.

Model#: 3-8900 | Series#: 3-8900-L-X-XX-XX-XXX

Price: $55400 $36848

Availability:13 in stock. Click for Parts Breakdown
$55400 $36848
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Series 8900 Multi-Parameter Controller

The GF Signet 8900 Multi-Parameter Controller takes the concept of modularity to the extreme. Each 8900 Controller is field-commissioned with the users-specified combination of inputs, outputs, and relays using simple-to-install modular boards into the base unit. Configure the system by selecting either 2, 4, or 6 input channels which accepts any of the Signet sensors listed below, and/or other manufacturer's sensors via a 4 to 20 mA signal converter (Signet Model 8058). To complete your unit, choose a power module with universal AC line voltage or 12 to 24 VDC.

If more features are needed, analog output and relay modules are available and easily installed. Plus, the 8900 Controller will support up to four additional relays via an external relay module. The 8900 accepts one or two frequency inputs. Each input will occupy one channel.

There are other notable features that the 8900 Controller offers. For example, digital input to the Signet 8900 Multi-Parameter Controller enables longer cable runs and simplified wiring with minimal noise interference. Advanced relay logic allows users to select up to three measurement sources to trigger one relay. Derived measurements include difference, sum, ratio, percent recovery, percent rejection, percent passage and BTU. The menu system can be programmed to display in multi-languages.

Fields of Application:
  • RO/DI System Control
  • Media Filtration
  • Pure Water Production
  • Demineralizers
  • Chemical Processing
  • Metal & Plastics Finishing
  • Fume scrubbers
  • Proportional Chemical Addition
  • Cooling Tower and Boiler Protection
  • Wastewater Treatment
  • Aquatic Animal Life Support Systems
  • Rinse Tank
  • Measures Flow, pH, ORP, Conductivity, Pressure, Level, Temperature and Dissolved Oxygen
  • Multi-language display
  • 1/4 DIN enclosure
  • Up to 4 analog outputs
  • Up to 8 relays
  • 12 to 24 VDC or 100 to 240 VAC ±10%, regulated power
  • Digital communication allows for extended cable lengths and easy wiring
  • Accepts 3rd party 4 to 20 mA output devices when used with 8058 signal converter
  • Available with 2 to 6 channels
  • Simultaneous BTU Calculations with Heating & Cooling Totalizers per calculation
3-8900 Product Specific Data
CompatibilityModular (completely field-commissionable)
No. of Input Channels2, 4, or 6
Input Signal Types..
Digital (S3 L) Serial ASCII, TTL level 9600 bps
Frequency0.5% of reading
Measurement TypesFlow, pH, ORP, Conductivity/Resistivity, Pressure, Temperature, Level, or 3rd party devices with a 4 to 20 mA output
Derived MeasurementsSum, difference, ratio, % recovery, % reject, % passage, power (BTU)
No. of Relays SupportedAvailable: 2, 4, 6 or 8 (8 dry-contact or 4 solid state and 4 dry- contact)
No. of Analog OutputsAvailable in pairs: 2 or 4 (active and/or passive 4 to 20 mA); and/or 2 (0 to 5/10 VDC)
Enclosure and Display..
Enclosure RatingNEMA 4X/IP65 (front face only)
Case MaterialPBT
Panel GasketSilicone Sponge
WindowSelf-healing polyurethane-coated polycarbonate
Keypad4-buttons, highly tactile and audible injection-molded silicone rubber seal
DisplayAlphanumeric 2 x 16 back-lit LCD
Update Rate1 second
AccuracySensor dependent
LCD Contrast4 settings
Languages AvailableEnglish, French, Spanish, German, Italian and Portuguese
Display Ranges..
pH-2.00 to 15.00 pH
pH Temperature-40 °C to 150 °C / -40 °F to 302 °F
ORP-9999 to +9999 mV
Flow Rate0.0000 to 999999 units per second, minute, hour or day
Totalizer0.00 to 99999999 units
Conductivity0.0000 to 999999 μS, mS, PPM & PPB (TDS), kΩ, MΩ
Conductivity Temperature-99.9 °C to 250 °C / -148 °F to 482 °F
Temperature-99.9 °C to 999.9 °C / -148 °F to 999.9 °F
Pressure-99.99 to 9999 psi, kPa, bar
Level-99999 to 99999 m, cm, ft, in., %
Volume-99999 to 999999 m³ , ft³ , in³ , cm³ , gal, L, kg, lb, %
Other (4 to 20 mA)-99999 to 999999 user selectable units
Backlit LCD-10 °C to 55 °C / 14 °F to 131 °F
Storage Temperature-15 °C to 80 °C / 5 °F to 176 °F
Relative Humidity0 to 95%, non-condensing
Maximum Altitude2,000 m (6,560 ft) 4,000 m (13,123 ft); use only DC power supply and, if applicable, solid state relays to maintain UL safety standard up to this altitude
Universal AC 100 to 240 VAC ±10%, regulated 50-60 Hz, 24 VA max.
DC 12 to 24 VDC, ±10%, regulated recommended, 7 Watts max.
Output Power to Sensors5 VDC up to 40 mA total
Terminal typeScrew-clamp, removable via plug-in modules
Analog Outputs (via I/O Modules and Output Modules) All analog outputs are freely assignable to any channel...
4 to 20 mA Output Endpoints are adjustable and reversible
Minimum Default 4.0 mA; user adjustable from 3.8 to 5.0 mA
Maximum Default20.00 mA; user adjustable from 19.0 to 21.0 mA
Test ModeProduces an adjustable 4 to 20 mA signal for functional verification of each output circuit
IsolationUp to 48 VAC/DC
Error Condition22.1 mA (default state when output source not configured)
Update Rate100 ms
Passive 4 to 20 mA (External Power required) Voltage12 to 24 VDC, ±10%, regulated
Active 4 to 20 mA (Internally Loop Powered) Max. Impedance750 Ω
0 to 5/10 VDC OutputEndpoints are adjustable and reversible
Endpoints are adjustable and reversible 0 to 5 VDC or 0 to 10 VDC, software selectable
Minimum Default0 VDC; user programmable from 0 to 0.5 VDC
Maximum Default5 VDC; user programmable from 4.5 to 5.5 VDC, or 9.5 to 10.5 VDC
Output Load10 kΩ minimum
Test ModeProduces an adjustable signal for functional verification of each output circuit
IsolationUp to 48 VAC/DC
Error Condition0 VDC (default state when output source not configured
Update Rate100 mS
Accuracy±20 mV over entire operating temperature range
Resolution5 mV
Power Supply Rejection 0.5 mV/V
Relay Modules All relays are freely assignable to any channel...
Internal relay modes of operationOff, Low, High, Window, Proportional Pulse, Pulse Width Modulation, USP, Volumetric,
External relay modes of operationOff, Low, High, Window, USP, Totalizer Volume, Advanced, % Rejection, % Recovery, % Passage
HysteresisUser adjustable
Time Delay0 to 6400 seconds
Advanced RelayUse "AND/OR" logic along with relay sources to trigger a relay. High/Low modes available for each of the 3 sources
Solid State RelaysNon-mechanical switches
Normally Open/Closed OperationSoftware selectable
Maximum Voltage Rating30 VDC or 42 VAC p-p
Current Rating50 mA DC or 50 mA AC RMS
On-state Impedance30 Ω or less
Off-state Leakage400 nA or less, AC or DC
IsolationUp to 48 VAC/DC
Transient ProtectionEmbedded, up to 48 V over-voltage
Dry-contact RelaysMechanical contacts
Maximum Pulse Rate 600 pulses/min. (volumetric pulse & PWM modes). 400 pulses/min. (prop. pulse mode)
Maximum Voltage Rating30 VDC or 250 VAC
Current Rating5 A
StandardsCE, UL, FCC
ApprovalsRoHS compliant, China RoHS
Document Title Download
Technical DatasheetClick Here to Download
CE CertificateClick Here to Download
BrochureClick Here to Download