Dwyer Instruments RTI2 Series Instructions Manual

SERIES RTI2
RATE/TOTAL INDICATOR
Loop Powered, Converts Pulse Frequency to 4 to 20 mA, High/Low Flow Alarm
The SERIES RTI2 Rate & Total Indicator is an indicator/transmitter that takes the pulse
output signal from compatible flowmeters, displays flow rate and total, and provides
output signals. It is compatible with the Series EFS2, IEFS, PDWS, and FLMG.
FEATURES/BENEFITS
• Can be mounted on a wall or mounted on the flowmeter for added flexibility
• Accessory mounting kits make it easy to change the mounting orientation
• High environmental protection with semi-flexible urethane potted electrical
components
• Provides a pulse, 4 to 20 mA and dual-relay output
APPLICATIONS
• Water treatment
• Water utilities
• Industrial chemical handling
MODEL CHART
Model Description
RTI2-W Wall-mounted
RTI2-M Meter-mounted
RTI2-P Panel-mounted
ACCESSORIES
Model Description
MMK2 Meter mounting kit
WMK2 Wall mounting kit
4-21/64 [110]
2-1/2
[63.50]
4-23/64
[110.50]
4-49/64
[121.20]
4-7/64
[104.10]
SPECIFICATIONS
Input: 5 V pulse or contact closure; 1 to 15 pulses/s.
Temperature Limits: Process: -32 to 131°F (0 to 55°C); Storage: -40 to 158°F (-40
to 75°C).
Output: Current sinking square wave
pulse: Scaled pulse output (0.1 s duration 6.1 Hz max. or high alarm
output or low alarm output), sensor pass-through pulse output (un-scaled); Pulse
output range: 0.1 to 9999999.9 units/pulse; Analog: 4 to 20 mA, 24 to 30 VDC.
Power Requirements: 7 to 30 VDC @ 4 mA (4 to 20 mA when loop-powered).
Display: Rate: 8 digits, 1/2 ̋ H LCD; Total: 8 digits, 5/16 ̋ character height.
K-Factor Range: 0.001 to 999999.999.
Flow Alarm Output Range: 0.1 to 99999.99.
Enclosure Material Housing: Die-cast powder-coated aluminum; Faceplate
#HP92W Lexan.
Enclosure Rating: NEMA 4X (IP67).
Electrical Connection: Terminal blocks, #22 AWG, 3 conductor 18 ́ (5.5 m) cable
(2000 ́ max.).
Mounting: See model chart.
Weight: 3 lb (1361 g).
4-7/64
[104.10]
3-3/8
[85.60]