“I have yet to find a standard sensor type that won’t work with Florite’s 991R!” -- Enrique G.|“Florite’s 991R may be small, but it’s very powerful.” -- Debbie R.|“When it comes to bang for the buck, you can’t beat the value of a 991R.” -- George T.

Florite Model 991R

PRODUCTS: Model 990X | Model 991R | 700 Series | Model N920

Model 991R

The Florite Model 991R is a technically superior microcomputer-based controller perfect for a wide range of commercial and industrial applications. Unlike standard fixed instrument platforms, any standard sensor signal can be quickly connected directly to the Model 991R allowing the user to select from a vast number of sensor and control products.

Installation and Operation – Set-up and operation is performed via the keypad or by using the standard RS-232 serial communication port provided with every Model 991R. The user simply configures the various programmable values needed to achieve the required application performance. Florite’s Model 991R does the rest.

Features Overview

  • Menu Driven Graphic Controls
  • Single Thermal Mass Flow Controller Channel (or mix up to four independent input-output ports)
  • Measurement Accuracy to 0.05%
  • Instrument Keypad and LWAN Remote Operation
  • Input Measurements: Digital, Current, Volts
  • Output Controls: Relay, Current, Volts
  • Total Self Auto-Diagnostics on Every Power-up

Florite 991R

Technically superior microcomputer-based controller perfect for a wide range of commercial and industrial applications.


Displays and Indicators

  • Large Graphic 8×20 High Contrast Backlit Display
  • Backlight Intensity Control
  • Process Measurement and Alarm Status
  • Audio and Visual Alarm Indicators

The Model 991R features a large, high contrast backlit graphic display enabling the user to view up to eight processes simultaneously from one screen. Any of the programmable values can be adjusted as the process is occurring. Audio-visual indicators provide quick and easy status and alarm information.

Process Control Capability

– Batch Quantity Deliveries – Dosing and Proportional Mixing

Information Reporting – Onboard Data Logging – Real-Time Clock-Calendar – Programmable Report Selection with Auto-Routing – Programmable Clock or Alarm Instigated Reports

Communications – Built-in RS232 Serial Communication Port – Multiple Unit Networked Operation – Serial Data Packet Error Controlled – Multiple Network Access Addresses – Remote Serial Computer Control

Alarm Services – Dual Independent Input Quantity Alarms – Operation and Maintenance Service Time – Rate-Value High, Low, Inclusive, Exclusive, and Detection

Special Functions – Keypad Security – User Programmable Measure Units – Selectable Quantity-Rate Time Base – Universal Independent Input-Output Scaling

Zero-Tare Capabilities – Zero Any One or All Measured Values – Rate-Value Offset Tare

Mounting Accessories – Panel Hardware – Table Top Hardware – Rack Hardware

Technical Specifications Control Functions – Monitor, Batch, Manual Process Rate – 0.009,999.99 unit/time-base Measure Type Rate – Total, Scalar, Pressure Totalize Range – 09,999.99 units Process Input – Digital, Current, Volt Process Output – Current, Compensated Voltage, Relay

Programmable Values Port Select – Off, Input, Output Rate Time Base – scalar (none), sec, min, hrs, day Rate Set-Point – 0.009,999.99 units Batch Set-Point – 0.009,999.99 units Blend Set-Point – 0.009,999.999% Rate-Value Filter – 1.0-20 sec Input Signal Interpolate – Lo-Hi Value=0-10.000/20.000 Lo-Hi units=0.00?9,999.99 Output Interpolate – Lo-Hi Value=0-10.000/20.000 Lo-Hi units=0.009,999.99 Pulse Signal Interpolate – 0.009,999.99 pulse/qty ratio Measure Units – 5 Chars (a-z, 0?9, A-Z, other) Quantity 1, 2 Alarm – 0.009,999.99 units Rate Hi-Lo Alarm 0.009,999.99 units Measure Units 5 Chars (a-z, 0?9, A-Z, other) Service Time Alarm 065,535 hrs

Global Functions WAN Addresses – Dual 16 characters Answer Rings – 0?255 (WAN option only) Network Address – 0?65,535 Serial Port Functions – Sio-Wan-Lan, Report-Log-Alarms Date?Time Clock dd-mm-yy, hrs-min-sec Report/Log Frequency 0?999 sec-min-hrs-day-month

Indicators Display – Graphic Backlit LCD Keypad – 8 metal dome tactile – (Select-Prog) (Back) (Home-Start) (Stop) (Up) (Down) (Left) (Right-Alt) Audio – 2.0 KHz, 85 db @ 10 cm

Input Interface Channels Isolation – >85 dbv (nom) Interface – 1×3 plug signal gnd excitation or DA15S option Excitation – Vr (4.096V?0.01%) +5v Vpwr @ ~25mA max Digital Pulse – 0?24 V threshold 2.4V (typ) Zi~10K pulled to +5V – >20KHz ?0.001% hall, open collector 5V cmos switch contacts Analog Voltage – 0?10.000V ?0.10% Zi~10.0K DA15S sense compensated Analog Current – 0?20.000 mA ?0.10% Zi=100 ohm Analog Resistance – 0-0.2M ohms

Output Interface Interface – 1×3 plug signal gnd aux-signal DA15S option Analog Voltage – 0?10.000V ?0.10% Z<0.25 ohm DA15S option sense compensated Analog Current – 0?20.000mA ?0.10% Zo~2M sourcing Relay Rating – Form C 28 VDC-vac 1.0A Isolated 1KV Aux Signal – -4.0V to +8V @ -/+ 4.0mA Power Control 2.0 Amps Max

Serial Ports Sio – EIA-TIA232D fdx D9S Wan – USOC RJ-11 tip-ring FCC Subpart H fdx WAN option Lan – EIA-TIA485 multi-drop master-salve option or 10-100 Ethernet option

Value Memory Nvram – 8Kx8 non-volatile parallel Eerom – 512×8 non-volatile 100 yr retention, Eerom 256Kx8 non-volatile serial log option Static ram – 1Kx8 parallel, Static ram 32×8 serial battery backed

Power Required Volts-Power – 12?24 VDC 2.0w (without options) Jack Unipolar – 2.1 or 2.5mm 2A or 5A center pos UL/CSA Plug Bipolar – DE9P 5A rated UL/CSA Battery – Lithium 3.0V 12mm 35 mA-hr 9 yr operate date-time clock option

Operating Environment Operation – 0?55?C 0?95% RH non-condensing Ship-Storage – ?20? to +85?C 0-95% RH non-condensing Warm Up – 3 sec typical to rated accuracy

991R Tabletop Mounting Hardware

Securely supports the single channel 991R on any flat surface. Solid metal base with rubber, slip-preventing feet.

Tabletop Accessory

991R Panel Mount Hardware

Aluminum brackets allow straightforward panel mounting of the single-channel 991R.

Panelmount Accessory

991R DIN Rail Hardware

A sturdy, control cabinet mounting accessory that easily adapts to your existing DIN mounting hardware system.


991R Wall Mount

Metal brackets securely attach the single-channel 991R to a well-anchored wall for ideal line-of-sight placement.

Panelmount Accessory