Meriam Instrument
Cleveland, OH 44102
Apr 08, 2004 Available with 0.10% accurate pressure measurement, 3900 Series MERIGAUGE™ can be battery or externally powered and rack- or pipe-mounted. Externally powered versions can be equipped with relays and 4–20 MA output. NEMA 4 stainless steel enclosure and isolated sensor are standard on all units. Product can be used for critical process applications or as battery-powered test gauge.

Mid-West Instrument
Sterling Heights, MI 48314
Apr 08, 2004 Offered with 2½, 3½, or 4½ in. dials, Model 123 is available with aluminum or 316/316L stainless steel bodies, 316 SS springs and internal parts, and various elastomers. It is fully over-range protected in either direction up to max rated safe working pressure of 5,000 psi. Hermetically sealed SPST or SPDT magnetically actuated reed switches are available as options to provide high/low alarm control.

Mid-West Instrument
Sterling Heights, MI 48314
Mar 12, 2004 Model 142 utilizes diaphragm to provide complete high side to low side isolation. It extends differential pressure down to 0–20 in. H₂O with accuracy below 0–400 in. H₂O. Maximum range is 0–25 psid. Unit features full over range protection in both directions up to rated safe working pressure of 3,000 psi for aluminum and stainless steel, and 1,500 psi for brass. Accuracy is ±3-2-2% of full scale. Dial sizes include 2½, 3½, and 4½ in.

Martel Electronics
Windham, NH 03087
Mar 11, 2004 BetaGauge PI Digital Pressure Test Gauge has adjustable reading sample rate to match type of measurement. Setup is accomplished via menu-driven display, and readings are shown on 5½ digit, 0.65 in. high digital display and percent-of-range bar graph. Accuracy is ±0.05% of FS readings of pressure, displayed in any one of 18 standard engineering units or user-defined custom units. Damping can be set to integrate readings to accommodate pulsating sources.

Dresser Instrument Headquarters, Ashcroft Pressure & Temperature Instrument Operation
Stratford, CT 06614 5145
Mar 01, 2004 Housed in thermoplastic case with cam lock ring or aluminum case with threaded ring, 4½ in. Ashcroft® digital industrial gauge comes apart by twisting front ring. Once batteries are installed, gauge can be hand tightened to fit securely back in correct position. Unit is powered by 2 C-cell batteries that fasten into place with velcro behind key pad. Features include IP65 weatherproof case and 0.25% FS terminal point accuracy.

Dresser Instrument Headquarters, Ashcroft Pressure & Temperature Instrument Operation
Stratford, CT 06614 5145
Mar 01, 2004 Ashcroft® digital industrial gauge acts as mechanical gauge, transducer, and switch. It can be used for any combination of local indication, signal, and switching and can be specified 3 ways: 4-20 mA with adjustable turndown, line powered 12–36 Vdc, and 1 or 2 SPDT switches with deadband adjustable to pressure range of gauge. Optional battery backup and backlite are available.

Televac
Huntingdon Valley, PA 19006
Feb 20, 2004 Model 7FC employs double-inverted magnetron technology for wide dynamic vacuum range of 10^-2–10^-11 torr. Bakeable to 200°C, sensor can be used in any physical orientation. Knife-edge metal seals ensure ultra-high vacuum capability. All wetted materials are 304 stainless and there are no hot filaments to sag and break. Metal-sealed/field cleanable anode subassembly can be maintained without breaking primary vacuum interface.

Mid-West Instrument
Sterling Heights, MI 48314
Jan 15, 2004 Model 120 Series Filter Minder ranges from 0–5 through 0–100 psid with accuracy of ±5% FS ascending. Differential pressure is sensed by movement of floating piston magnet against calibrated spring. Gauge pointer, outside pressure housing, follows movement of piston magnet and indicates pressure. Made of aluminum bronze or monel, unit is weather-resistant and offers working pressure of 5,000 psig. Dial is 2½, 3½, or 4½ in. round with shatter-resistant lens.

Spirax Sarco, Inc.
Blythewood, SC 29016
Dec 02, 2003 All-welded Type 316 stainless steel pressure gauge withstands vibration, pulsation, and mechanical shock. With 4 in. dia, instrument is available with single-scale pressure ranges of 0–30, 0–60, 0–100, 0–160, and 0–200 psig. Compound scale model is available in 30 Hg–60 psig pressure range, while vacuum version is available in 30–0 Hg. It suits chemical process, pharmaceutical, and paper manufacturing industries.

Orange Research, Inc.
Milford, CT 06460
Sep 23, 2003 Series 1500 Sensors measure high differential pressures without fluid migration. Diaphram is combined with piston-magnet pointer assembly to completely seal piston area. Bodies and wetted parts are anodized aluminum, type 316 stainless steel, naval brass, or PVC. Available in switch and gauge-switch models that measure more than 18 pressure ranges from 0-5 to 0-300 psid, instruments include 1 or 2 independently adjustable reed switches.

F & R Gauges North America
Hingham, MA 02043
Aug 19, 2003 Threaded Ring Panel Mount System consists of lightweight pressure gauge in plastic housing that eliminates need for nuts, bolts, and metal brackets. Diameters range from 1½â€“2½ in. with scales from -30 in.Hg to 400 psi. Black or chromed triangular flange is available. Gauge is suited for use on compressors, vacuum pumps, regulators, and other pneumatic applications.

Swagelok Company
Solon, OH 44139 2764
Aug 19, 2003 Thermoplastic Pressure Gauges monitor vacuum and positive system pressures up to 15,000 psi. Featuring 4½ and 6 in. dial sizes in lower-back mount and lower mount configurations, gauges come with male NPT or tube adapter end connections. Tube adapter connections allow user to rotate gauge to desired position for viewing. Available unfilled or liquid-filled with glycerin or silicone, solid-front gauges feature turret-style case and blowout back.

Dresser Instrument Headquarters, Ashcroft Pressure & Temperature Instrument Operation
Stratford, CT 06614 5145
Aug 13, 2003 Ashcroft® Types 5503 and 5509 withstand all types of weather conditions while measuring very low differential pressure. Type 5503 can handle static pressures up to 3,625 psi. Both utilize stainless steel diaphragm-sensing element to protect against corrosive processes. Gauges come in psid, millibar, bar, and in. of water ranges with or without electric contacts. Type 5503 has 1.6% FS accuracy with ½% upscale accuracy option; Type 5509 has accuracy of 2.5% FS.

Dresser Instrument Headquarters, Ashcroft Pressure & Temperature Instrument Operation
Stratford, CT 06614 5145
Aug 12, 2003 Ashcroft® Industrial Digital Gauges, with 4–20 mA output and switching option, combine indication, transmission, and switching capability into single package. Units are 4½ in. with .88 in. character height and 5-digit resolution. They feature .25% full scale, terminal point accuracy; multiple engineering units; ranges from vacuum through 20,000 psi; tamper-resistant re-zeroing; percent-of-range bar graph; and weatherproof aluminum case, rated to IP65.

Teledyne Hastings Instruments
Hampton, VA 23661
Jul 16, 2003 Model DV-6S thermocouple gauge tube is for outdoor use on cryogenic tanks, including railcar and tanker-truck applications. O-ring-sealed cap protects gauge-tube pins from moisture, reducing corrosion. Metal lanyard prevents cap loss. Tube is provided with standard 1/8 in. NPT fitting. Gauge handles shock and vibration per MIL-STD-202 testing.

Dwyer Instruments, Inc.
Michigan City, IN 46361 0373
Jul 11, 2003 Series MP Mini-Photohelic combines Minihelic II® differential pressure gage with 2 SPDT switching setpoints. It measures and controls positive, negative, or differential pressures consisting of non-combustible and non-corrosive gases. Gage reading is independent of switch operation. Switching status is visible by LED indicators located on front and rear of gage. Compact size makes unit suitable for fume hoods, dust collection, and pneumatic conveying.

GE Company, GE Industrial Systems
Plainville, CT 06062
Jun 12, 2003 Utilizing one differential piston/cylinder, Model 2482 produces differential pressures from fractions of an inch of water to 100 psi, with differential pressure accuracy of 0.01% plus 0.00007 psi. By adding single mass, it automatically balances piston gauge under computer control and maintains system balance automatically using Thermal Compensator technology. Heaters set in small volume of oil within unit are adjusted to expand oil and return system to balanced condition.

F & R Gauges North America
Hingham, MA 02043
Jun 10, 2003 ISO-certified pressure gauges are for compressors, FRLs, vacuum pumps, and regulators for pneumatic and hydraulic applications. Gauges have plastic, steel, and stainless steel housings, and include dry and liquid fill options. Additional options include panel mounts, including ABS-threaded ring system for simplified installation. Gauges range in size from 1 to 2.5 in. dia.

Teledyne Hastings Instruments
Hampton, VA 23661
May 12, 2003 Digital VT Vacuum Indicator offers vacuum measurement for DV-4 and DV-6 gauge tubes and interchangeability with existing analog versions. Self-contained device provides 3-digit LED display, 1/8 DIN package, and wall transformer with 5 V output. Offered for DV-4 pressure range of 1–20 Torr and DV-6 pressure range of 1–999 mTorr, unit includes jumper features, which are factory set.

Dwyer Instruments, Inc.
Michigan City, IN 46361 0373
Apr 29, 2003 Series 7000B Spirahelic® Pressure Gage with Diaphragm Seal employs all 316 stainless steel wetted parts for corrosive media service. Manufactured for severe service applications, product is suited for systems with high cycle rates, environments with continuous vibration or shock, and processes with problematic pressure surges and spikes. Unit includes all benefits of standard Spirahelic® Pressure Gage, is maintenance free, and requires no recalibration.