Liquid Controls SP2850 (MS-649) - Manual (Page 2)

Sponsler, Inc. Model SP2850-TC with MS649 Page 2 DOC#: MN-2850
INTRODUCTION
Featuring 8 digits of bright, .55”, alpha-numeric display, the unit can accept up to 10,000 pulses per second and a
direct 100 ohm platinum RTD or analog input. An 8 digit, floating decimal, “K” factor converts inputs to meaningful
count and rate data. The user, with the push of a button, can view the total of the batch, the rate of flow, Preset
value, temperature, or density. Two control outputs are provided for two-stage valve control.
Description:
A scaled pulse output is provided by an open-collector driver. Since the output frequency is user selectable at 10,
200, 2K or 20K Hz, the unit can transmit the count data to electromechanical or electronic counters as well as
computers, programmable controllers or other monitor equipment.
An analog output allows the user to select low and high settings to control strip recorders or other peripherals. A
16 Point Linearization variable K-factor option makes flow systems more accurate and often extends the usable
range by allowing the users to dial in different K-factors for different flow rates. It is recommended for flow meters
whose K-factors change with different rates of flow. From 3 to 16 points of frequency (0 to 10,000 Hz) and K-factors
greater than .0001 are programmed in at set up. The unit uses 8 digit floating math to interpolate between settings.
Rate per second, per minute or per hour programmability eliminates the need to calculate separate K-factors for
total or rate.
• Accepts 4-30V Inputs (pre-amp required)
Features:
• Takes a Direct 100 ohm Platinum RTD or Analog Signal For Compensation Input
• Display Mass or Corrected Volume, Rate,Temperature or Density
• Two Setpoints For Two-Stage Valve Control
• 10Khz Count Input Frequency
• K-Factor Programmable to 8 Places
• Temperature or Density Compensation Input
• Scaleable 4-20mA Output of Rate/Total
• 16 Point Linearization Selectable Programming
• NEMA 4X/IP65 Front Panel
• Two Way RS232/422 Communications Option (must be specified with unit order)
• Temperature/Density out of range input inhibit
SPECIFICATIONS:
DISPLAY: 8 digit, .55” High, 15 Segment, Red Orange, LED.
INPUT POWER:
A: 110 VAC +/- 15% or 15 to 27 VDC
B: 220 VAC +/- 15% or 15 to 27 VDC
CURRENT: Maximum 350mA DC or 8.8 VA at rated AC voltage.
OUTPUT POWER (On AC powered units only): +12 VDC at 100mA. Separate Isolated 12 VDC at 100mA to allow
+12 VDC or +24 VDC regulated +5% worst case.
MEMORY: EEPROM stores all program and count data for minimum of ten years if power is lost.
PULSE INPUT:
Standard) 4-30 VDC 30 K ohm impedance to GND, 10 Khz max. Input speed (min. On/off
µ50 sec.)
Requires pulse amplifier.
Magnetic Pickup) 30mV to 30V P/P min., 2 Hz to 5 Khz Input Speed
COMPENSATION INPUT:
The compensation input can be hooked up directly to an RTD or an analog signal. The input types available
are : RTD, 4-20mA, 0-5V, or 0-10V. If the compensation input is not used, select `MANUAL’ input type and
enter the parameters at which the unit is operating.