Beetrode ® Bee-caL ZBeecaL Micro pH electrodes with 100-micron sensing tips! ● neW—iMproVeD—super-miniature, superfast coated wire pH electrodes ● 100-micron diameter — ideal for monitoring fast pH changes in very small places 3508 1358 nMpH2B nM p H2 nMpH3 nM nMp BeetroDe SpeciFicationS TIP DIAMETER TIP LENGTH BODY DIAMETER (NMPH 1, 3, 3L, 5) BODY LENGTH (NMPH 1, 3, 5) BODY LENGTH (NMPH 3L) RESPONSE TIME pH RANGE SLOPE RESISTANCE SELECTIVITY 100 µ (0.1 mm) 2 mm (approx.), except 5 mm (approx.) on NMPH5 0.187 in. (5 mm) 1.875 in. (48 mm) 0.75 in. (19 mm) 1 s (90%) typical 0-14 Nernstian 100 kΩ (max) No significant interference by K+, Na+, Ca++ in 0.1 to 1 M solutions pH 1 3L BIOS EN S I NG pH H5 nM Beetrode® is a solid state pH sensor with ideal characteristics over a wide pH range. Exhibits a larger Eo than conventional glass electrodes. Requires a separate reference electrode, such as WPI’s Dri-Ref Series. Beetrodes (except the NMPH2) connect to your pH meter via a BNCterminated cable. Beetrodes generate mV readings on standard pH meters. To obtain pH-scale readings on standard pH meters, use BEE-CAL™, a small, battery-operated compensator (AA battery included) that adjusts the electrode offset potential so that Beetrodes will produce standard pH-scale readings. (NMPH2B requires ZBEECAL.) pH-Silver nMpH1* Beetrode—2 mm receptacle nMpH2 Beetrode with 1 m cable (unterminated) nMpH2B Beetrode w/ BNC cable, 1 m cable nMpH3* Dental Beetrode, 45° Bend, 2 mm receptacle nMpH3L* Dental Beetrode w/ 2 mm loop, 2 mm receptacle nMpH5* Beetrode, 2 mm receptacle SYS-BeecaL Beetrode Offset & Cable (BNC, 2 mm pin) ZBeecaL Bee-Cal Level Shifting Device 3508 BNC-to-US Standard Adapter 1358 BNC-to-2 mm Pin Adapter Je671p pH Meter, pH Electrode, Temp. Probe 110v AC adapter Je671pZ pH Meter, pH Electrode, Temp. Probe 220v AC adapter *Requires BEE-CAL or 1358 BNC-to-2 mm Pin Cable (4-ft) for connection to a pH meter. Low-noise combination pH electrode WPI’s pH-Silver, single/double-junction, gel-sealed Ag/AgCl combination pH electrodes are very low noise. They are designed for both laboratory and field use, especially for applications involving strong magnetic fields. The unique features of these electrodes provide unparalleled performance. ● Special internal fill offers full range linear temperature compensation ● Very low sensor glass membrane resistance ● zero and Isopotential: ~pH 7 ● Compatible with almost all pH meters pH-SiLVer Je671p Je671pZ Combination pH Electrode, Low Noise pH Meter, pH Electrode, Temp. Probe 110v AC adapter pH Meter, pH Electrode, Temp. Probe 220v AC adapter ● Superior stability ● Fast response ● Minimum sodium (alkaline) error ● pH 0 -14 full range measurement pH-SiLVer SpeciFicationS BULB SHAPE BODY MATERIAL / COLOR TYPE OF REFERENCE SEALED/REFILLABLE pH RANGE JUNCTION MATERIAL JUNCTION TYPE MAX. TEMPERATURE DIMENSIONS CABLE LENGTH CONNECTOR Ball Epoxy / Blue Ag/AgCl Gel-Sealed 0-14 Ceramic wick Single 80 °C 12 x 115 mm 1.0 m BNC World Precision Instruments UK: Tel: +44 (0)1462 424700 • wpiuk@wpi-europe.com www.wpiinc.com Germany: Tel: +49 (0)30-6188845 • wpide@wpi-europe.com US: Tel: 941-371-1003 • sales@wpiinc.com 67