HUBA
699 Series Differential Pressure Indicator & Transmitter
Field Selectable Voltage and Current Outputs, F.S. Ranges From 0.1 to 20"
DESCRIPTION
Series 699 measures low differential pressures typically found in air conditioning applications such as air flow measurement, fan static pressures and specialty room pressure measurements in clean rooms and other low pressure space monitoring applications.
The 699 series incorporates time proven ceramic fulcrum lever technology. They deliver adjusted and temperature-compensated sensor signals, available as standard voltage or current outputs.
The 699 is available in three configurations offering different levels of function and cost.
Configuration 1 is a transmitter with field selectable ranges and factory preset output signal and zero offset configurations.
Configuration 2 incorporates a 10 position DIP switch allowing field selection of range, output signal & response time. A potentiometer allows further adjustment of span within the selected range.
Configuration 3 incorporates an LED display and full field function programming via programming button including setting of range and fine tuning of span, output signal, zero offset, units of measurement, response time, square root extraction and display light settings.
SPECIFICATIONS
Medium: Air and neutral gases Pressure ranges: F.S. from ± 0.1 to 20" w.c. See order table for field selectable ranges offered for each model Units of pressure measurement: Inches w.c., mm w.c. Tolerable overload on one side of diaphragm: Pressure: 40" w.c. at P1, 1.6" w.c. at P2 Vacuum: 40" w.c. at P2, 1.6" w.c. at P1 Rupture pressure: 2 x overload at ambient temperature 1.5 x overload at 70°C Zero Adjustment: Zero point resettable by reset button Materials in contact with medium: Housing: Polycarbonate PC Diaphragm: Silicone Sensor: Al2O3 (96%) / glass Temperature: Medium and ambient: 32 to 158°F (0 to +70°C) Storage: 14 to 158°F (10 to +70°C) No condensation Output/Power Supply: Three-Wire 0 to10 V, 13.5to 33 VDC / 24 VAC ±15% 0 to 20 mA, 13.5 to 33 VDC / 24 VAC ±15% 4 to 20 mA, 13.5 to 33 VDC / 24 VAC ±15% Two-Wire 4 to 20 mA, 8.0 to 33 VDC Additional adjustable by software (with LCD Display, configuration 3 only): 0-5.0V, 6.5 to 33 VDC / 24 VAC ±15% Load: 3-wire: 0-10 V > 10 kOhm 0-20 mA < 500 Ohm 4-20 mA < 500 Ohm 2-wire: 4-20 mA < (supply voltage - 8V) ÷ (0.02 A) Ohms Current Consumption: 3-wire: 0-10 V < 10 mA 0-20 mA < 30 mA 4-20 mA < 30 mA 2-wire 4-20 mA 20 mA Backlight LCD-Display: 30 mA Dynamic response: Response time: < 20 ms Load cycle: <10 Hz Response time Filter: Filter response time switchable for configuration 2: off or 1 second Filter response time programmable for configuration 3: 0.2 / 1 / 5 / 20 seconds Electrical connection: Screw terminals for wire and stranded conductors up to 16 AWG, PG11 cable gland with built-in strain relief Polarity reversal protection: Short circuit proof and protected against polarity reversal. Each connection is protected against crossover up to max. supply voltage. Protection standard: Without cover: IP 100 With cover: IP 54 or IP 65 Pressure connections: Hose barb: .244" (6.2 mm) Installation: Recommended and factory adjustment vertical, with pressure connections downward Mounting: Mounting bracket (integrated in case) Display,configuration 3: LCD display, double spaced per 8 digit alphanumeric (3-wire with backlight) Tests: CE conform Weight: With Display: approx.100 g Without Display: 90 g Packaging: Individually boxed
| Cross-section Drawing Legend | ![]() |
|
| 1 | Diaphragm | |
| 2 | Sensor element | |
| 3 | P1(Higher Pressure) Pressure connection | |
| 4 | LCD-Display (option) | |
| 5 | Amplification Circuit | |
| 6 | Connection terminals | |
| 7 | Cover | |
| 8 | P2 (Lower Pressure) Pressure connection | |
| Accuracy | |||||
| 0.2" w.c | 0.4 " w.c. | 1.2 " w.c. | 2.0 " w.c. | 4 to 20" w.c. | |
| Tolerance zero point (max.). | ±1.0% fs | ±1.0% fs | ±0.7% fs | ±0.7% fs | ±0.7% fs |
| Tolerance full scale | ±1.0% fs | ±1.0% fs | ±0.7% fs | ±0.7% fs | ±0.7% fs |
| Resolution | ±0.2% fs | ±0.2% fs | ±0.1% fs | ±0.1% fs | ±0.1% fs |
| Total of linearity, hysteresis and repeatability (max.) | ±1.0% fs | ±1.0% fs | ±1.0% fs | ±1.0% fs | ±0.6% fs |
| Long therm stability acc. to DIN IEC 60770 | ±1.0% fs | ±1.0% fs | ±1.0% fs | ±1.0% fs | ±1.0% fs |
| Temp. Coeff. zero point (typ.) | ±0.2% fs/10K | ±0.2% fs/10K | ±0.2% fs/10K | ±0.1% fs/10K | ±0.1% fs/10K |
| TC Temp. Coeff. zero point (max.) | ±1.0% fs/10K | ±1.0% fs/10K | ±0.5% fs/10K | ±0.4% fs/10K | ±0.4% fs/10K |
| Temp. Coeff. sensitivity (typ.) | ±0.3% fs/10K | ±0.3% fs/10K | ±0.2% fs/10K | ±0.1% fs/10K | ±0.1% fs/10K |
| Temp. Coeff. sensitivity (max.) | ±0.6% fs/10K | ±0.6% fs/10K | ±0.5% fs/10K | ±0.5% fs/10K | ±0.2% fs/10K |
| Test conditions: 25°C, 45%RH, Power Supply 24 VDC; Temperature Coefficient Zero Point 32 to 158°F (0 … 70°C) | |||||
| Legend | |
| 1 | Dual DIP Switch |
| 1a | 10 Position DIP Switch |
| 2 | Zero Point Reset |
| 3 | Terminal Connection |
| 4 | P1 & P2 Pressure Ports |
| 5 | Signal Amplification Potentiometer |
| 6 | LCD |
| 7 | LCD Receptacle |
| Configuration Major Differences | |||
| Parameter | Config. 1 | Config. 2 | Config. 3 |
| LCD Display | No | No | Yes |
| Field Select Output Signals | No | Yes | Yes |
| Field Select Response Time | No | Std. or 1 sec. | 0.2, 1, 5 or 20 sec. |
| Display Program Menu & Program Button | No | No | Yes |
ORDERING INFORMATION
ORDER NUMBER ABCDEFGHI
EXAMPLE: 6999-11321113
| PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS | ||||||||
| A=Model | B=Pressure Range Zero Offset | C=F.S. Pressure Range Field Selectable | D=Units of Measure | *E=Output Signal/ Adjustment | F=Output & Power Supply | **G=Display | H=Connection | I=Environmental |
| 6999 | 1= 0-100% | 0=0.1/0.2 inches w.c. | 3=inches of water | 1=Linear w/o filter | 1=0-10 V, three-wire | 0=None | 1=6.2 mm Tube Connection | 0= IP54 |
| 2= -10% to 0 to 100% | 1=0.1/0.2/0.3 inches w.c. | 6=mm w.c. | 2=Linear w/ filter (Config 2&3) | 2=0-20 mA- three-wire | 1=In Eng. Units Ordered | 2=6.2 mm Tube Connection, Orifice in P1 | 3= IP65 | |
| 3=-100% to 0 to+100% | 2=0.3/0.6/1 inches w.c. | 4=Square root extracted w/o filter | 4=4-20 mA, three=wire | 2=In % F.S | 3=6.2 mm Tube Connection, Orifice in P2 | |||
| 3=0.5/1/2 inches w.c. | 3=Square root extracted w/filter (Config 2&3) | 5=4-20 mA, 2-wire | 4=6.2 mm Tube Connection, Orifice in P1& P2 | |||||
| 4= 1/2/3 inches w.c. | ||||||||
| 5=2/3/5 inches w.c. | ||||||||
| 6=3/5/10 inches w.c. | ||||||||
| 7=5/10/20 inches w.c. | ||||||||
| *For Configuration 2 Select Output Signal 2 or 3 | ||||||||
| ** For Configuration 3 Select Display 1 or 2 | ||||||||



