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Table of Contents
Summary of Contents for ZAHNER PP212
- Page 1 Power Potentiostats PP212/PP222/PP242 XPOT2 (Operation Manual) 06/2021...
- Page 2 Power Potentiostats...
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Page 3: Table Of Contents
Power Potentiostats 1 Power Potentiostats ................. 1 1.1 PP212/PP222/PP242 Packing List ............ 1 1.2 XPOT2 Packing List ................2 2 Caution ..................... 2 3 Introduction ....................3 3.1 Modular Concept – Extension to Zennium Series Potentiostat ... 3 3.1.1 PP2X2 – Power Potentiostats ............3 3.1.2 XPOT2 .................... - Page 4 Power Potentiostats 8.1.3 PP242 ..................... 18 8.1.4 XPOT2 .................... 18 8.2 General specifications ..............19 9 Safe operating conditions ..............20 9.1 PP212 ....................20 9.2 PP222 ....................21 9.3 PP242 ....................22 9.4 XPOT2 ....................23...
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Page 5: Power Potentiostats
Zahner products are carefully manufactured, calibrated and tested to achieve high- quality standard. Packing of the power potentiostats and accessories is done with great care to avoid damage during transport. Upon reception of the Zahner’s shipment, please check the potentiostat and accessories to make sure that they are intact. -
Page 6: Xpot2 Packing List
Please read the risk assessment document before operating the potentiostat. Zahner’s potentiostats require a warm-up time of 30 minutes for optimum performance. Do not connect active objects such as batteries or fuel cells to the power outputs of the potentiostat when the potentiostat is switched off! This may damage the potentiostat. -
Page 7: Introduction
The four-quadrant power potentiostats (PP212/PP222/PP242) provide up to ±40 A (PP242) or up to ±20 V (PP212) with a maximum power output of 200 W. To connect a power potentiostat with the Zennium potentiostat, an EPC42 interface card is used. - Page 8 Power Potentiostats current and voltage by the power potentiostats are sent to the Zennium to be treated in the same way as signals from the internal cards are treated. The EPC42 card provides a bandwidth of 250 kHz. A bi-directional serial communication line allows to digitally control the external potentiostat functions and measuring ranges.
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Page 9: Stand-Alone Mode
Power Potentiostats 3.2 Stand-Alone Mode Zahner’s power potentiostats (PP2X2 and XPOT2) can also be operated in stand- alone mode. To control the devices in stand-alone mode, Windows 10 or Linux computer is necessary. For software updates, Windows 10 is required and use of a virtual machine is not permitted. -
Page 10: Measuring Floating Objects
Power Potentiostats 3.3 Measuring Floating Objects On the rear of the power potentiostats (PP2X2 and XPOT2), two connectors with a jumper are provided. If the jumper is set, the signal ground is connected to ground via a 100 Ω protective resistor. When examining grounded objects, the jumper on the back of the instrument must be removed. -
Page 11: Cell Connection Scheme
Power Potentiostats 4 Cell Connection Scheme All Zahner’s potentiostats and power potentiostats follow the same cell connection scheme (4-electrodes connection scheme). The 4-electrode connection scheme includes connections for working electrode (WE), working electrode sense (WES), reference electrode (RE), and counter electrode (CE). These connections are specified by their color code, WE: black, WES: blue, RE: green, and CE: red. -
Page 12: Four-Electrode Cell Connection Scheme
Power Potentiostats 4.2 Four-Electrode Cell Connection Scheme The advantage of a 4-electrode connection scheme can be illustrated with Fig. 3. In Fig. 3, a pouch cell is connected with the Zennium potentiostat via a 4-electrode connection scheme. With the WES and RE being directly connected to the pouch- cell, the contact resistance for the WE and CE can be ignored as they don’t affect the voltage value (not possible with 2-electrode connection scheme). -
Page 13: Two-Electrode Cell Connection Scheme
Power Potentiostats With the 4-electrode connection scheme, the contact resistances are in most cases not significant in the measured cell impedance. This is only true if the cell resistance of the test object is much smaller than the input resistance of the potentiostat. -
Page 14: Thales Software
Power Potentiostats -10- 5 Thales Software All external potentiostats are directly controlled by the Thales software. Each device has a unique device number which is identical to the EPC42 port number with which the external potentiostat is connected, if no RMUX card is installed. For example, if a device is connected to EPC port 3 then in Thales, the device is addressed as “device number 3”. -
Page 15: Xpot2
The output as well as the input is electrically isolated up to a maximum potential difference of ±12 V (for PP222 and PP242) and of ±24 V (for PP212) against ground potential. -
Page 16: Full Cell Configuration (Standard Kelvin Scheme)
Power Potentiostats -12- 7.1 Full Cell Configuration (Standard Kelvin Scheme) This configuration is used if a complete cell is to be investigated. Temperatur sensor sense Fig. 6: Cable connection schematic for full cell characterization. WE and WES connections are connected to the one electrode of the cell and RE and CE connections are connected to the other electrode. -
Page 17: Half Cell Configuration - Anode
Power Potentiostats -13- 7.2 Half Cell Configuration – Anode This configuration is used if the anodic part of the cell is to be investigated. Here the voltage is measured between anode and a reference electrode. WE sense Fig. 7: Cable connection schematic for characterizing the anode of the cell. Current is applied/measured between the anode and cathode whereas voltage is measured between the anode and a reference electrode (Ref). -
Page 18: Half Cell Configuration - Cathode
Power Potentiostats -14- 7.3 Half Cell Configuration – Cathode This configuration is used if the cathodic part of the cell is to be investigated. Here the voltage is measured between cathode and a reference electrode. WE sense Fig. 8: Cable connection schematic for characterizing the cathodic part of the cell. Current is applied/measured between the anode and cathode whereas voltage is measured between the cathode and a reference electrode (Ref). -
Page 19: Partial Cell Configuration
Power Potentiostats -15- 7.4 Partial Cell Configuration This configuration may be used, if a certain part of a battery or fuel cell stack has to be investigated. Ref 2 Ref 1 WE sense Fig. 9: Cable connection schematic for characterizing a part of the cell. Current is applied/measured between the anode and cathode whereas voltage is measured between two reference electrodes (Ref1 and Ref2). -
Page 20: Battery Configuration
Power Potentiostats -16- 7.5 Battery Configuration In this configuration, the battery is connected in such a way that a positive open circuit potential can be read in the Thales software. Fig. 10: Cable connection schematic for full cell characterization. WE and WES connections are connected to the one electrode of the cell and RE and CE connections are connected to the other electrode. -
Page 21: Specifications
±40 mA ±0.2% of reading ±4 mA ±0.2% of reading -400m 400m -400m 400m ±400 µA ±0.2% of reading Table 1: PP212 Ranges and tolerances 8.1.2 PP222 Voltage Ranges Voltage Range Range Standalone [V] Range Thales [V] Tolerance Index Factor ±500 µV ±0.1% of reading... -
Page 22: Pp242
Power Potentiostats -18- 8.1.3 PP242 Voltage Ranges Voltage Range Range Standalone [V] Range Thales [V] Tolerance Index Factor ±500 µV ±0.1% of reading ±1250 µV ±0.1% of reading Current Ranges Shunt Range Standalone [A] Range Thales [A] Tolerance Index Resistance ±400 mA ±0.2% of reading 100m ±40 mA ±0.2% of reading... -
Page 23: General Specifications
Dimensions (H x W x D) in mm 160 x 364 x 378 160 x 185 x 327 Weight 10.2 kg 4.6 kg Zahner-Lab / SCPI ADC Resolution 24 bit Voltage Input Resoluiton 1.192 µV 0.596 µV Current Input Resolution 5.96 nA... -
Page 24: Safe Operating Conditions
409 389 369 349 329 309 288 268 248 228 207 187 166 146 125 104 84 429 408 387 366 345 324 302 281 260 239 217 196 174 153 131 109 88 Table 6: Safe operating range for power potentiostat PP212... -
Page 25: Pp222
Power Potentiostats -21- 9.2 PP222 Output current [A] Power loss [W] Sink Source 417 397 377 357 337 317 297 276 256 235 214 193 172 151 130 109 87 397 378 359 340 321 302 283 263 244 224 204 184 164 144 124 104 83 377 359 341 323 305 287 269 250 232 213 194 175 156 137 118 99 357 340 323 306 289 272 255 237 220 202 184 166 148 130 112 94 337 321 305 289 273 257 241 224 208 191 174 157 140 123 106 89... -
Page 26: Pp242
Power Potentiostats -22- 9.3 PP242 Output current [A] Power loss [W] Sink Source 458 437 416 394 373 351 329 307 285 262 239 216 193 170 146 122 98 438 418 398 377 357 336 315 294 273 251 229 207 185 163 140 117 94 418 399 380 360 341 321 301 281 261 240 219 198 177 156 134 112 90 398 380 362 343 325 306 287 268 249 229 209 189 169 149 128 107 86 101 105 110 114 118... -
Page 27: Xpot2
Power Potentiostats -23- 9.4 XPOT2 Output current [A] Power loss [W] Sink Source 0.5 0.48 0.45 0.43 0.4 0.38 0.35 0.33 0.3 0.28 0.25 0.23 0.2 0.18 0.15 0.13 0.1 0.08 0.05 0.03 0.03 0.05 0.08 0.1 0.13 0.15 0.18 0.2 0.23 0.25 0.28 0.3 0.33 0.35 0.38 0.4 0.43 0.45 0.48 0.5 12.5 18.5 17.6 16.7 15.8 14.8 13.9 13.0 12.1 11.2 10.2 9.3 8.4 7.5 6.5 5.6 4.7 3.7 2.8 1.9 0.9 0.3 0.6 0.9 1.2 1.5 1.9 2.2 2.5 2.8 3.1 3.4 3.7 4.0 4.3 4.5 4.8 5.1 5.4 5.7 6.0...